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113103231031131 = 31111243304844849
BaseRepresentation
bin11001101101110111100101…
…111010001001011101011011
3112211110120012122012210021120
4121231313211322021131123
5104311040404120444011
61040314523530340323
732552303334204165
oct3155674572113533
9484416178183246
10113103231031131
11330468a135a530
12108281b728a6a3
134b15786b25a23
141dd032303d935
15d1211bb6da06
hex66dde5e8975b

113103231031131 has 16 divisors (see below), whose sum is σ = 164528423683200. Its totient is φ = 68541315624320.

The previous prime is 113103231031117. The next prime is 113103231031163. The reversal of 113103231031131 is 131130132301311.

It is not a de Polignac number, because 113103231031131 - 214 = 113103231014747 is a prime.

It is a super-2 number, since 2×1131032310311312 (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113103231031181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152051406 + ... + 152793443.

It is an arithmetic number, because the mean of its divisors is an integer number (10283026480200).

Almost surely, 2113103231031131 is an apocalyptic number.

113103231031131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

113103231031131 is a deficient number, since it is larger than the sum of its proper divisors (51425192652069).

113103231031131 is a wasteful number, since it uses less digits than its factorization.

113103231031131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304856106.

The product of its (nonzero) digits is 486, while the sum is 24.

Adding to 113103231031131 its reverse (131130132301311), we get a palindrome (244233363332442).

The spelling of 113103231031131 in words is "one hundred thirteen trillion, one hundred three billion, two hundred thirty-one million, thirty-one thousand, one hundred thirty-one".

Divisors: 1 3 11 33 11243 33729 123673 371019 304844849 914534547 3353293339 10059880017 3427370637307 10282111911921 37701077010377 113103231031131