313271220 has 24 divisors (see below), whose sum is σ = 877159584. Its totient is φ = 83538976.

The previous prime is 313271219. The next prime is 313271237. The reversal of 313271220 is 22172313.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2610534 + ... + 2610653.

It is an arithmetic number, because the mean of its divisors is an integer number (36548316).

Almost surely, 2^313271220 is an apocalyptic number.

313271220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

313271220 is an abundant number, since it is smaller than the sum of its proper divisors (563888364).

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

313271220 is a wasteful number, since it uses less digits than its factorization.

313271220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5221199 (or 5221197 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 313271220 is about 17699.4694835749. The cubic root of 313271220 is about 679.1621890547.

The spelling of 313271220 in words is "three hundred thirteen million, two hundred seventy-one thousand, two hundred twenty".