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113101131 = 31113299091
BaseRepresentation
bin1101011110111…
…00100101001011
321212211010120210
412233130211023
5212423214011
615120052203
72542225623
oct657344513
9255733523
10113101131
115892a610
1231a64063
131a57ca60
1411041883
159de16a6
hex6bdc94b

113101131 has 32 divisors (see below), whose sum is σ = 183294720. Its totient is φ = 61084800.

The previous prime is 113101123. The next prime is 113101139. The reversal of 113101131 is 131101311.

It is an interprime number because it is at equal distance from previous prime (113101123) and next prime (113101139).

It is not a de Polignac number, because 113101131 - 23 = 113101123 is a prime.

It is a super-2 number, since 2×1131011312 = 25583731666958322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113101139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7896 + ... + 16986.

It is an arithmetic number, because the mean of its divisors is an integer number (5727960).

Almost surely, 2113101131 is an apocalyptic number.

113101131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

113101131 is a deficient number, since it is larger than the sum of its proper divisors (70193589).

113101131 is a wasteful number, since it uses less digits than its factorization.

113101131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9147.

The product of its (nonzero) digits is 9, while the sum is 12.

The square root of 113101131 is about 10634.9015510253. The cubic root of 113101131 is about 483.6029958814.

Adding to 113101131 its reverse (131101311), we get a palindrome (244202442).

The spelling of 113101131 in words is "one hundred thirteen million, one hundred one thousand, one hundred thirty-one".

Divisors: 1 3 11 13 29 33 39 87 143 319 377 429 957 1131 4147 9091 12441 27273 100001 118183 263639 300003 354549 790917 1300013 2900029 3427307 3900039 8700087 10281921 37700377 113101131