313554315531 has 4 divisors (see below), whose sum is σ = 418072420712. Its totient is φ = 209036210352.

The previous prime is 313554315493. The next prime is 313554315583. The reversal of 313554315531 is 135513455313.

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

It is not a de Polignac number, because 313554315531 - 2²¹ = 313552218379 is a prime.

It is a super-2 number, since 2×313554315531² (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 313554315531.

It is not an unprimeable number, because it can be changed into a prime (313554315031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52259052586 + ... + 52259052591.

It is an arithmetic number, because the mean of its divisors is an integer number (104518105178).

Almost surely, 2^313554315531 is an apocalyptic number.

313554315531 is a deficient number, since it is larger than the sum of its proper divisors (104518105181).

313554315531 is a wasteful number, since it uses less digits than its factorization.

313554315531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104518105180.

The product of its digits is 202500, while the sum is 39.

The spelling of 313554315531 in words is "three hundred thirteen billion, five hundred fifty-four million, three hundred fifteen thousand, five hundred thirty-one".