311719311329 has 2 divisors, whose sum is σ = 311719311330. Its totient is φ = 311719311328.

The previous prime is 311719311313. The next prime is 311719311383. The reversal of 311719311329 is 923113917113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219623449600 + 92095861729 = 468640^2 + 303473^2 .

It is a cyclic number.

It is not a de Polignac number, because 311719311329 - 2⁴ = 311719311313 is a prime.

It is not a weakly prime, because it can be changed into another prime (311719311829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155859655664 + 155859655665.

It is an arithmetic number, because the mean of its divisors is an integer number (155859655665).

Almost surely, 2^311719311329 is an apocalyptic number.

It is an amenable number.

311719311329 is a deficient number, since it is larger than the sum of its proper divisors (1).

311719311329 is an equidigital number, since it uses as much as digits as its factorization.

311719311329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30618, while the sum is 41.

The spelling of 311719311329 in words is "three hundred eleven billion, seven hundred nineteen million, three hundred eleven thousand, three hundred twenty-nine".