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1102313031 = 31721613981
BaseRepresentation
bin100000110110011…
…1111011001000111
32211211012022012120
41001230333121013
54224143004111
6301214221023
736213335421
oct10154773107
92754168176
101102313031
11516255106
122691b4773
131474b0741
14a6581811
1566b91406
hex41b3f647

1102313031 has 8 divisors (see below), whose sum is σ = 1556206704. Its totient is φ = 691647360.

The previous prime is 1102313029. The next prime is 1102313057. The reversal of 1102313031 is 1303132011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1102313031 - 21 = 1102313029 is a prime.

It is a super-2 number, since 2×11023130312 = 2430188036624813922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1102313031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102313431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10806940 + ... + 10807041.

It is an arithmetic number, because the mean of its divisors is an integer number (194525838).

Almost surely, 21102313031 is an apocalyptic number.

1102313031 is a deficient number, since it is larger than the sum of its proper divisors (453893673).

1102313031 is a wasteful number, since it uses less digits than its factorization.

1102313031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21614001.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1102313031 is about 33201.0998462400. The cubic root of 1102313031 is about 1033.0031531169.

Adding to 1102313031 its reverse (1303132011), we get a palindrome (2405445042).

The spelling of 1102313031 in words is "one billion, one hundred two million, three hundred thirteen thousand, thirty-one".

Divisors: 1 3 17 51 21613981 64841943 367437677 1102313031