313311020 has 48 divisors (see below), whose sum is σ = 759997728. Its totient is φ = 107228160.

The previous prime is 313310993. The next prime is 313311049. The reversal of 313311020 is 20113313.

It is a junction number, because it is equal to n+sod(n) for n = 313310986 and 313311004.

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, 38147 + ... + 45626.

It is an arithmetic number, because the mean of its divisors is an integer number (15833286).

Almost surely, 2^313311020 is an apocalyptic number.

It is an amenable number.

313311020 is an abundant number, since it is smaller than the sum of its proper divisors (446686708).

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

313311020 is a wasteful number, since it uses less digits than its factorization.

313311020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83810 (or 83808 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 313311020 is about 17700.5937753512. The cubic root of 313311020 is about 679.1909495544.

Adding to 313311020 its reverse (20113313), we get a palindrome (333424333).

The spelling of 313311020 in words is "three hundred thirteen million, three hundred eleven thousand, twenty".