311320327 has 2 divisors, whose sum is σ = 311320328. Its totient is φ = 311320326.

The previous prime is 311320319. The next prime is 311320333. The reversal of 311320327 is 723023113.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 311320327 - 2³ = 311320319 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 311320298 and 311320307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311320367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155660163 + 155660164.

It is an arithmetic number, because the mean of its divisors is an integer number (155660164).

Almost surely, 2^311320327 is an apocalyptic number.

311320327 is a deficient number, since it is larger than the sum of its proper divisors (1).

311320327 is an equidigital number, since it uses as much as digits as its factorization.

311320327 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 311320327 is about 17644.2717900173. The cubic root of 311320327 is about 677.7494273658.

The spelling of 311320327 in words is "three hundred eleven million, three hundred twenty thousand, three hundred twenty-seven".