113515313525 has 12 divisors (see below), whose sum is σ = 140957542500. Its totient is φ = 90684151680.

The previous prime is 113515313507. The next prime is 113515313531. The reversal of 113515313525 is 525313515311.

It can be written as a sum of positive squares in 6 ways, for example, as 20128231876 + 93387081649 = 141874^2 + 305593^2 .

It is not a de Polignac number, because 113515313525 - 2¹⁰ = 113515312501 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3184400 + ... + 3219849.

It is an arithmetic number, because the mean of its divisors is an integer number (11746461875).

Almost surely, 2^113515313525 is an apocalyptic number.

It is an amenable number.

113515313525 is a deficient number, since it is larger than the sum of its proper divisors (27442228975).

113515313525 is an equidigital number, since it uses as much as digits as its factorization.

113515313525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6404968 (or 6404963 counting only the distinct ones).

The product of its digits is 33750, while the sum is 35.

Adding to 113515313525 its reverse (525313515311), we get a palindrome (638828828836).

The spelling of 113515313525 in words is "one hundred thirteen billion, five hundred fifteen million, three hundred thirteen thousand, five hundred twenty-five".