317130216256 has 112 divisors (see below), whose sum is σ = 774685532160. Its totient is φ = 125809896960.

The previous prime is 317130216211. The next prime is 317130216301. The reversal of 317130216256 is 652612031713.

It is an interprime number because it is at equal distance from previous prime (317130216211) and next prime (317130216301).

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176986 + ... + 815833.

Almost surely, 2^317130216256 is an apocalyptic number.

It is an amenable number.

317130216256 is an abundant number, since it is smaller than the sum of its proper divisors (457555315904).

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

317130216256 is a wasteful number, since it uses less digits than its factorization.

317130216256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992892 (or 992882 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

Adding to 317130216256 its reverse (652612031713), we get a palindrome (969742247969).

The spelling of 317130216256 in words is "three hundred seventeen billion, one hundred thirty million, two hundred sixteen thousand, two hundred fifty-six".