316117719961 has 2 divisors, whose sum is σ = 316117719962. Its totient is φ = 316117719960.

The previous prime is 316117719959. The next prime is 316117719977. The reversal of 316117719961 is 169917711613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 267437916736 + 48679803225 = 517144^2 + 220635^2 .

It is a cyclic number.

It is not a de Polignac number, because 316117719961 - 2¹ = 316117719959 is a prime.

Together with 316117719959, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 316117719899 and 316117719908.

It is not a weakly prime, because it can be changed into another prime (316117719941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158058859980 + 158058859981.

It is an arithmetic number, because the mean of its divisors is an integer number (158058859981).

Almost surely, 2^316117719961 is an apocalyptic number.

It is an amenable number.

316117719961 is a deficient number, since it is larger than the sum of its proper divisors (1).

316117719961 is an equidigital number, since it uses as much as digits as its factorization.

316117719961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 428652, while the sum is 52.

The spelling of 316117719961 in words is "three hundred sixteen billion, one hundred seventeen million, seven hundred nineteen thousand, nine hundred sixty-one".