311122313317 has 2 divisors, whose sum is σ = 311122313318. Its totient is φ = 311122313316.

The previous prime is 311122313311. The next prime is 311122313329. The reversal of 311122313317 is 713313221113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191396625121 + 119725688196 = 437489^2 + 346014^2 .

It is a cyclic number.

It is not a de Polignac number, because 311122313317 - 2³ = 311122313309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311122313311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155561156658 + 155561156659.

It is an arithmetic number, because the mean of its divisors is an integer number (155561156659).

Almost surely, 2^311122313317 is an apocalyptic number.

It is an amenable number.

311122313317 is a deficient number, since it is larger than the sum of its proper divisors (1).

311122313317 is an equidigital number, since it uses as much as digits as its factorization.

311122313317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 28.

The spelling of 311122313317 in words is "three hundred eleven billion, one hundred twenty-two million, three hundred thirteen thousand, three hundred seventeen".