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1113102131 = 5313921087
BaseRepresentation
bin100001001011000…
…1001011100110011
32212120111110001212
41002112021130303
54234423232011
6302241350335
736404132501
oct10226113463
92776443055
101113102131
11521354119
122709383ab
131497ba51b
14a7b8d671
1567ac308b
hex42589733

1113102131 has 12 divisors (see below), whose sum is σ = 1143372672. Its totient is φ = 1083245904.

The previous prime is 1113102097. The next prime is 1113102143. The reversal of 1113102131 is 1312013111.

It is a happy number.

It is not a de Polignac number, because 1113102131 - 222 = 1108907827 is a prime.

It is a super-2 number, since 2×11131021312 = 2477992708073482322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113102161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1023470 + ... + 1024556.

It is an arithmetic number, because the mean of its divisors is an integer number (95281056).

Almost surely, 21113102131 is an apocalyptic number.

1113102131 is a deficient number, since it is larger than the sum of its proper divisors (30270541).

1113102131 is an equidigital number, since it uses as much as digits as its factorization.

1113102131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418 (or 1279 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1113102131 is about 33363.1852645997. The cubic root of 1113102131 is about 1036.3624556636.

Adding to 1113102131 its reverse (1312013111), we get a palindrome (2425115242).

The spelling of 1113102131 in words is "one billion, one hundred thirteen million, one hundred two thousand, one hundred thirty-one".

Divisors: 1 53 139 1087 7367 19321 57611 151093 1024013 8007929 21001927 1113102131