313511020 has 24 divisors (see below), whose sum is σ = 693025200. Its totient is φ = 118804032.

The previous prime is 313510997. The next prime is 313511047. The reversal of 313511020 is 20115313.

313511020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×313511020² = 196578319322880800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 313510985 and 313511003.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412135 + ... + 412894.

It is an arithmetic number, because the mean of its divisors is an integer number (28876050).

Almost surely, 2^313511020 is an apocalyptic number.

It is an amenable number.

313511020 is an abundant number, since it is smaller than the sum of its proper divisors (379514180).

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

313511020 is a wasteful number, since it uses less digits than its factorization.

313511020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825057 (or 825055 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 313511020 is about 17706.2424020457. The cubic root of 313511020 is about 679.3354378186.

Adding to 313511020 its reverse (20115313), we get a palindrome (333626333).

The spelling of 313511020 in words is "three hundred thirteen million, five hundred eleven thousand, twenty".