311696923 has 2 divisors, whose sum is σ = 311696924. Its totient is φ = 311696922.

The previous prime is 311696873. The next prime is 311696927. The reversal of 311696923 is 329696113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 311696923 - 2¹³ = 311688731 is a prime.

It is not a weakly prime, because it can be changed into another prime (311696927) by changing a digit.

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 as a sum of consecutive naturals, namely, 155848461 + 155848462.

It is an arithmetic number, because the mean of its divisors is an integer number (155848462).

Almost surely, 2^311696923 is an apocalyptic number.

311696923 is a deficient number, since it is larger than the sum of its proper divisors (1).

311696923 is an equidigital number, since it uses as much as digits as its factorization.

311696923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52488, while the sum is 40.

The square root of 311696923 is about 17654.9404700214. The cubic root of 311696923 is about 678.0226024551.

The spelling of 311696923 in words is "three hundred eleven million, six hundred ninety-six thousand, nine hundred twenty-three".