311204313 has 12 divisors (see below), whose sum is σ = 513734208. Its totient is φ = 177831000.

The previous prime is 311204297. The next prime is 311204417. The reversal of 311204313 is 313402113.

311204313 = 3382² + 3383² + ... + 3408².

It is not a de Polignac number, because 311204313 - 2⁴ = 311204297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (311203313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2469813 + ... + 2469938.

It is an arithmetic number, because the mean of its divisors is an integer number (42811184).

Almost surely, 2^311204313 is an apocalyptic number.

It is an amenable number.

311204313 is a deficient number, since it is larger than the sum of its proper divisors (202529895).

311204313 is a wasteful number, since it uses less digits than its factorization.

311204313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4939764 (or 4939761 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 311204313 is about 17640.9839011320. The cubic root of 311204313 is about 677.6652287829.

Adding to 311204313 its reverse (313402113), we get a palindrome (624606426).

The spelling of 311204313 in words is "three hundred eleven million, two hundred four thousand, three hundred thirteen".