313331975773 has 2 divisors, whose sum is σ = 313331975774. Its totient is φ = 313331975772.

The previous prime is 313331975771. The next prime is 313331975777. The reversal of 313331975773 is 377579133313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 215855018404 + 97476957369 = 464602^2 + 312213^2 .

It is an emirp because it is prime and its reverse (377579133313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313331975773 - 2¹ = 313331975771 is a prime.

Together with 313331975771, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 313331975773.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313331975771) 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, 156665987886 + 156665987887.

It is an arithmetic number, because the mean of its divisors is an integer number (156665987887).

Almost surely, 2^313331975773 is an apocalyptic number.

It is an amenable number.

313331975773 is a deficient number, since it is larger than the sum of its proper divisors (1).

313331975773 is an equidigital number, since it uses as much as digits as its factorization.

313331975773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3750705, while the sum is 52.

The spelling of 313331975773 in words is "three hundred thirteen billion, three hundred thirty-one million, nine hundred seventy-five thousand, seven hundred seventy-three".