311013312228 has 48 divisors (see below), whose sum is σ = 806382660160. Its totient is φ = 103664437632.

The previous prime is 311013312199. The next prime is 311013312251. The reversal of 311013312228 is 822213310113.

311013312228 is a `hidden beast` number, since 3 + 1 + 101 + 331 + 2 + 228 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1766775 + ... + 1934817.

Almost surely, 2^311013312228 is an apocalyptic number.

It is an amenable number.

311013312228 is an abundant number, since it is smaller than the sum of its proper divisors (495369347932).

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

311013312228 is a wasteful number, since it uses less digits than its factorization.

311013312228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185193 (or 185185 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The spelling of 311013312228 in words is "three hundred eleven billion, thirteen million, three hundred twelve thousand, two hundred twenty-eight".