313112320 has 36 divisors (see below), whose sum is σ = 750004920. Its totient is φ = 125244416.

The previous prime is 313112299. The next prime is 313112323. The reversal of 313112320 is 23211313.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 313112294 and 313112303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313112323) 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, 121030 + ... + 123589.

It is an arithmetic number, because the mean of its divisors is an integer number (20833470).

Almost surely, 2^313112320 is an apocalyptic number.

It is an amenable number.

313112320 is an abundant number, since it is smaller than the sum of its proper divisors (436892600).

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

313112320 is an equidigital number, since it uses as much as digits as its factorization.

313112320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244640 (or 244626 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 313112320 is about 17694.9800791072. The cubic root of 313112320 is about 679.0473395605.

Adding to 313112320 its reverse (23211313), we get a palindrome (336323633).

It can be divided in two parts, 3131 and 12320, that added together give a palindrome (15451).

The spelling of 313112320 in words is "three hundred thirteen million, one hundred twelve thousand, three hundred twenty".