311323210211317 has 2 divisors, whose sum is σ = 311323210211318. Its totient is φ = 311323210211316.

The previous prime is 311323210211249. The next prime is 311323210211329. The reversal of 311323210211317 is 713112012323113.

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., 275349917256241 + 35973292955076 = 16593671^2 + 5997774^2 .

It is a cyclic number.

It is not a de Polignac number, because 311323210211317 - 2¹⁵ = 311323210178549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311323210211347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155661605105658 + 155661605105659.

It is an arithmetic number, because the mean of its divisors is an integer number (155661605105659).

Almost surely, 2^{311323210211317} is an apocalyptic number.

It is an amenable number.

311323210211317 is a deficient number, since it is larger than the sum of its proper divisors (1).

311323210211317 is an equidigital number, since it uses as much as digits as its factorization.

311323210211317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The spelling of 311323210211317 in words is "three hundred eleven trillion, three hundred twenty-three billion, two hundred ten million, two hundred eleven thousand, three hundred seventeen".