12513900087 has 32 divisors (see below), whose sum is σ = 20005171200. Its totient is φ = 7685443296.

The previous prime is 12513900079. The next prime is 12513900089. The reversal of 12513900087 is 78000931521.

It is not a de Polignac number, because 12513900087 - 2³ = 12513900079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12513900089) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141114 + ... + 211992.

It is an arithmetic number, because the mean of its divisors is an integer number (625161600).

Almost surely, 2^12513900087 is an apocalyptic number.

12513900087 is a deficient number, since it is larger than the sum of its proper divisors (7491271113).

12513900087 is a wasteful number, since it uses less digits than its factorization.

12513900087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71404 (or 71398 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The spelling of 12513900087 in words is "twelve billion, five hundred thirteen million, nine hundred thousand, eighty-seven".