13112507256 has 32 divisors (see below), whose sum is σ = 33667250640. Its totient is φ = 4252704768.

The previous prime is 13112507249. The next prime is 13112507281. The reversal of 13112507256 is 65270521131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7382281 + ... + 7384056.

Almost surely, 2^13112507256 is an apocalyptic number.

It is an amenable number.

13112507256 is an abundant number, since it is smaller than the sum of its proper divisors (20554743384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13112507256 is a wasteful number, since it uses less digits than its factorization.

13112507256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14766383 (or 14766379 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

The spelling of 13112507256 in words is "thirteen billion, one hundred twelve million, five hundred seven thousand, two hundred fifty-six".