311020994 has 24 divisors (see below), whose sum is σ = 497566188. Its totient is φ = 145774080.

The previous prime is 311020951. The next prime is 311021017. The reversal of 311020994 is 499020113.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 308880625 + 2140369 = 17575^2 + 1463^2 .

It is a Curzon 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 11 ways as a sum of consecutive naturals, for example, 67814 + ... + 72254.

Almost surely, 2^311020994 is an apocalyptic number.

311020994 is a deficient number, since it is larger than the sum of its proper divisors (186545194).

311020994 is a wasteful number, since it uses less digits than its factorization.

311020994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4578 (or 4559 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 311020994 is about 17635.7873087651. The cubic root of 311020994 is about 677.5321401037.

The spelling of 311020994 in words is "three hundred eleven million, twenty thousand, nine hundred ninety-four".