313172020 has 24 divisors (see below), whose sum is σ = 751613184. Its totient is φ = 107373216.

The previous prime is 313172017. The next prime is 313172021. The reversal of 313172020 is 20271313.

313172020 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 2×313172020² = 196153428221760800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313172021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1118332 + ... + 1118611.

It is an arithmetic number, because the mean of its divisors is an integer number (31317216).

Almost surely, 2^313172020 is an apocalyptic number.

It is an amenable number.

313172020 is an abundant number, since it is smaller than the sum of its proper divisors (438441164).

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

313172020 is a wasteful number, since it uses less digits than its factorization.

313172020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2236959 (or 2236957 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 313172020 is about 17696.6669178125. Note that the first 3 decimals coincide. The cubic root of 313172020 is about 679.0904939893.

The spelling of 313172020 in words is "three hundred thirteen million, one hundred seventy-two thousand, twenty".