251313525124130 has 128 divisors (see below), whose sum is σ = 552088121978880. Its totient is φ = 80506715627520.

The previous prime is 251313525124091. The next prime is 251313525124187. The reversal of 251313525124130 is 31421525313152.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2121499862 + ... + 2121618318.

It is an arithmetic number, because the mean of its divisors is an integer number (4313188452960).

Almost surely, 2^{251313525124130} is an apocalyptic number.

251313525124130 is an abundant number, since it is smaller than the sum of its proper divisors (300774596854750).

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

251313525124130 is a wasteful number, since it uses less digits than its factorization.

251313525124130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152244.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 251313525124130 in words is "two hundred fifty-one trillion, three hundred thirteen billion, five hundred twenty-five million, one hundred twenty-four thousand, one hundred thirty".