313013320 has 16 divisors (see below), whose sum is σ = 704280060. Its totient is φ = 125205312.

The previous prime is 313013287. The next prime is 313013329. The reversal of 313013320 is 23310313.

It can be written as a sum of positive squares in 2 ways, for example, as 300467556 + 12545764 = 17334^2 + 3542^2 .

It is a junction number, because it is equal to n+sod(n) for n = 313013294 and 313013303.

It is not an unprimeable number, because it can be changed into a prime (313013329) 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, 3912627 + ... + 3912706.

Almost surely, 2^313013320 is an apocalyptic number.

It is an amenable number.

313013320 is an abundant number, since it is smaller than the sum of its proper divisors (391266740).

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

313013320 is a wasteful number, since it uses less digits than its factorization.

313013320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7825344 (or 7825340 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 313013320 is about 17692.1824544062. The cubic root of 313013320 is about 678.9757648478.

Adding to 313013320 its reverse (23310313), we get a palindrome (336323633).

The spelling of 313013320 in words is "three hundred thirteen million, thirteen thousand, three hundred twenty".