313361220 has 48 divisors (see below), whose sum is σ = 896087808. Its totient is φ = 81784320.

The previous prime is 313361219. The next prime is 313361227. The reversal of 313361220 is 22163313.

It is not an unprimeable number, because it can be changed into a prime (313361227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52741 + ... + 58380.

It is an arithmetic number, because the mean of its divisors is an integer number (18668496).

Almost surely, 2^313361220 is an apocalyptic number.

313361220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

313361220 is an abundant number, since it is smaller than the sum of its proper divisors (582726588).

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

313361220 is a wasteful number, since it uses less digits than its factorization.

313361220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111180 (or 111178 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 313361220 is about 17702.0117500808. The cubic root of 313361220 is about 679.2272218873.

The spelling of 313361220 in words is "three hundred thirteen million, three hundred sixty-one thousand, two hundred twenty".