313111303111813 has 2 divisors, whose sum is σ = 313111303111814. Its totient is φ = 313111303111812.

The previous prime is 313111303111799. The next prime is 313111303111819. The reversal of 313111303111813 is 318111303111313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312713139587809 + 398163524004 = 17683697^2 + 631002^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313111303111813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313111303111819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156555651555906 + 156555651555907.

It is an arithmetic number, because the mean of its divisors is an integer number (156555651555907).

Almost surely, 2^{313111303111813} is an apocalyptic number.

It is an amenable number.

313111303111813 is a deficient number, since it is larger than the sum of its proper divisors (1).

313111303111813 is an equidigital number, since it uses as much as digits as its factorization.

313111303111813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 31.

The spelling of 313111303111813 in words is "three hundred thirteen trillion, one hundred eleven billion, three hundred three million, one hundred eleven thousand, eight hundred thirteen".