113128887525 has 24 divisors (see below), whose sum is σ = 196883961120. Its totient is φ = 57159858240.

The previous prime is 113128887499. The next prime is 113128887533. The reversal of 113128887525 is 525788821311.

It is not a de Polignac number, because 113128887525 - 2⁵ = 113128887493 is a prime.

It is a super-3 number, since 3×113128887525³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39692922 + ... + 39695771.

It is an arithmetic number, because the mean of its divisors is an integer number (8203498380).

Almost surely, 2^113128887525 is an apocalyptic number.

113128887525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

113128887525 is a deficient number, since it is larger than the sum of its proper divisors (83755073595).

113128887525 is a wasteful number, since it uses less digits than its factorization.

113128887525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79388725 (or 79388720 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 51.

The spelling of 113128887525 in words is "one hundred thirteen billion, one hundred twenty-eight million, eight hundred eighty-seven thousand, five hundred twenty-five".