311361056 has 36 divisors (see below), whose sum is σ = 646976862. Its totient is φ = 147481344.

The previous prime is 311361049. The next prime is 311361073. The reversal of 311361056 is 650163113.

It can be written as a sum of positive squares in only one way, i.e., 242736400 + 68624656 = 15580^2 + 8284^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1925 + ... + 25028.

Almost surely, 2^311361056 is an apocalyptic number.

It is an amenable number.

311361056 is an abundant number, since it is smaller than the sum of its proper divisors (335615806).

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

311361056 is a wasteful number, since it uses less digits than its factorization.

311361056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27001 (or 26974 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 311361056 is about 17645.4259228844. The cubic root of 311361056 is about 677.7789819760.

The spelling of 311361056 in words is "three hundred eleven million, three hundred sixty-one thousand, fifty-six".