831418113961 has 2 divisors, whose sum is σ = 831418113962. Its totient is φ = 831418113960.

The previous prime is 831418113959. The next prime is 831418113997. The reversal of 831418113961 is 169311814138.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 789503331600 + 41914782361 = 888540^2 + 204731^2 .

It is a cyclic number.

It is not a de Polignac number, because 831418113961 - 2¹ = 831418113959 is a prime.

Together with 831418113959, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (831418113931) 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, 415709056980 + 415709056981.

It is an arithmetic number, because the mean of its divisors is an integer number (415709056981).

Almost surely, 2^831418113961 is an apocalyptic number.

It is an amenable number.

831418113961 is a deficient number, since it is larger than the sum of its proper divisors (1).

831418113961 is an equidigital number, since it uses as much as digits as its factorization.

831418113961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 46.

The spelling of 831418113961 in words is "eight hundred thirty-one billion, four hundred eighteen million, one hundred thirteen thousand, nine hundred sixty-one".