113257364731 has 4 divisors (see below), whose sum is σ = 129436988272. Its totient is φ = 97077741192.

The previous prime is 113257364719. The next prime is 113257364789. The reversal of 113257364731 is 137463752311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113257364731 - 2⁷ = 113257364603 is a prime.

It is a super-2 number, since 2×113257364731² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113257304731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8089811760 + ... + 8089811773.

It is an arithmetic number, because the mean of its divisors is an integer number (32359247068).

Almost surely, 2^113257364731 is an apocalyptic number.

113257364731 is a deficient number, since it is larger than the sum of its proper divisors (16179623541).

113257364731 is an equidigital number, since it uses as much as digits as its factorization.

113257364731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16179623540.

The product of its digits is 317520, while the sum is 43.

The spelling of 113257364731 in words is "one hundred thirteen billion, two hundred fifty-seven million, three hundred sixty-four thousand, seven hundred thirty-one".