311279231339 has 2 divisors, whose sum is σ = 311279231340. Its totient is φ = 311279231338.

The previous prime is 311279231327. The next prime is 311279231387. The reversal of 311279231339 is 933132972113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 311279231339 - 2⁸ = 311279231083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 311279231339.

It is not a weakly prime, because it can be changed into another prime (311279231309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155639615669 + 155639615670.

It is an arithmetic number, because the mean of its divisors is an integer number (155639615670).

Almost surely, 2^311279231339 is an apocalyptic number.

311279231339 is a deficient number, since it is larger than the sum of its proper divisors (1).

311279231339 is an equidigital number, since it uses as much as digits as its factorization.

311279231339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 183708, while the sum is 44.

The spelling of 311279231339 in words is "three hundred eleven billion, two hundred seventy-nine million, two hundred thirty-one thousand, three hundred thirty-nine".