313551020 has 24 divisors (see below), whose sum is σ = 660716784. Its totient is φ = 124990016.

The previous prime is 313551013. The next prime is 313551059. The reversal of 313551020 is 20155313.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 313550983 and 313551001.

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, 20894 + ... + 32613.

It is an arithmetic number, because the mean of its divisors is an integer number (27529866).

Almost surely, 2^313551020 is an apocalyptic number.

It is an amenable number.

313551020 is an abundant number, since it is smaller than the sum of its proper divisors (347165764).

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

313551020 is a wasteful number, since it uses less digits than its factorization.

313551020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53809 (or 53807 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 313551020 is about 17707.3719111561. The cubic root of 313551020 is about 679.3643280970.

The spelling of 313551020 in words is "three hundred thirteen million, five hundred fifty-one thousand, twenty".