315030322531 has 4 divisors (see below), whose sum is σ = 333561517992. Its totient is φ = 296499127072.

The previous prime is 315030322513. The next prime is 315030322543. The reversal of 315030322531 is 135223030513.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315030322531 is a prime.

It is a super-2 number, since 2×315030322531² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 315030322531.

It is not an unprimeable number, because it can be changed into a prime (315030322511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9265597705 + ... + 9265597738.

It is an arithmetic number, because the mean of its divisors is an integer number (83390379498).

Almost surely, 2^315030322531 is an apocalyptic number.

315030322531 is a deficient number, since it is larger than the sum of its proper divisors (18531195461).

315030322531 is a wasteful number, since it uses less digits than its factorization.

315030322531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18531195460.

The product of its (nonzero) digits is 8100, while the sum is 28.

The spelling of 315030322531 in words is "three hundred fifteen billion, thirty million, three hundred twenty-two thousand, five hundred thirty-one".