311326097 has 2 divisors, whose sum is σ = 311326098. Its totient is φ = 311326096.

The previous prime is 311326033. The next prime is 311326121. The reversal of 311326097 is 790623113.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 256032001 + 55294096 = 16001^2 + 7436^2 .

It is a cyclic number.

It is not a de Polignac number, because 311326097 - 2⁶ = 311326033 is a prime.

It is a Chen prime.

It is equal to p_16832192 and since 311326097 and 16832192 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (311326027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155663048 + 155663049.

It is an arithmetic number, because the mean of its divisors is an integer number (155663049).

Almost surely, 2^311326097 is an apocalyptic number.

It is an amenable number.

311326097 is a deficient number, since it is larger than the sum of its proper divisors (1).

311326097 is an equidigital number, since it uses as much as digits as its factorization.

311326097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 311326097 is about 17644.4352984163. The cubic root of 311326097 is about 677.7536144680.

The spelling of 311326097 in words is "three hundred eleven million, three hundred twenty-six thousand, ninety-seven".