311324911 has 2 divisors, whose sum is σ = 311324912. Its totient is φ = 311324910.

The previous prime is 311324873. The next prime is 311324939. The reversal of 311324911 is 119423113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 311324911 - 2²³ = 302936303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311324011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155662455 + 155662456.

It is an arithmetic number, because the mean of its divisors is an integer number (155662456).

Almost surely, 2^311324911 is an apocalyptic number.

311324911 is a deficient number, since it is larger than the sum of its proper divisors (1).

311324911 is an equidigital number, since it uses as much as digits as its factorization.

311324911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 25.

The square root of 311324911 is about 17644.4016900546. The cubic root of 311324911 is about 677.7527538304.

The spelling of 311324911 in words is "three hundred eleven million, three hundred twenty-four thousand, nine hundred eleven".