113131344625 has 32 divisors (see below), whose sum is σ = 152096214816. Its totient is φ = 83516947200.

The previous prime is 113131344527. The next prime is 113131344647. The reversal of 113131344625 is 526443131311.

It can be written as a sum of positive squares in 16 ways, for example, as 73427992576 + 39703352049 = 270976^2 + 199257^2 .

It is not a de Polignac number, because 113131344625 - 2⁷ = 113131344497 is a prime.

It is a super-2 number, since 2×113131344625² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6291147 + ... + 6309103.

It is an arithmetic number, because the mean of its divisors is an integer number (4753006713).

Almost surely, 2^113131344625 is an apocalyptic number.

It is an amenable number.

113131344625 is a deficient number, since it is larger than the sum of its proper divisors (38964870191).

113131344625 is a wasteful number, since it uses less digits than its factorization.

113131344625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21862 (or 21852 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

Adding to 113131344625 its reverse (526443131311), we get a palindrome (639574475936).

The spelling of 113131344625 in words is "one hundred thirteen billion, one hundred thirty-one million, three hundred forty-four thousand, six hundred twenty-five".