315231237513 has 48 divisors (see below), whose sum is σ = 477855181440. Its totient is φ = 207640008576.

The previous prime is 315231237499. The next prime is 315231237521. The reversal of 315231237513 is 315732132513.

315231237513 is a `hidden beast` number, since 3 + 1 + 523 + 123 + 7 + 5 + 1 + 3 = 666.

It is not a de Polignac number, because 315231237513 - 2²⁰ = 315230188937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315231237913) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34533756 + ... + 34542882.

It is an arithmetic number, because the mean of its divisors is an integer number (9955316280).

Almost surely, 2^315231237513 is an apocalyptic number.

It is an amenable number.

315231237513 is a deficient number, since it is larger than the sum of its proper divisors (162623943927).

315231237513 is an equidigital number, since it uses as much as digits as its factorization.

315231237513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10828 (or 10816 counting only the distinct ones).

The product of its digits is 56700, while the sum is 36.

The spelling of 315231237513 in words is "three hundred fifteen billion, two hundred thirty-one million, two hundred thirty-seven thousand, five hundred thirteen".