2313387961 has 2 divisors, whose sum is σ = 2313387962. Its totient is φ = 2313387960.

The previous prime is 2313387941. The next prime is 2313387991. The reversal of 2313387961 is 1697833132.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2042588025 + 270799936 = 45195^2 + 16456^2 .

It is a cyclic number.

It is not a de Polignac number, because 2313387961 - 2⁵ = 2313387929 is a prime.

It is not a weakly prime, because it can be changed into another prime (2313387941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1156693980 + 1156693981.

It is an arithmetic number, because the mean of its divisors is an integer number (1156693981).

Almost surely, 2^2313387961 is an apocalyptic number.

It is an amenable number.

2313387961 is a deficient number, since it is larger than the sum of its proper divisors (1).

2313387961 is an equidigital number, since it uses as much as digits as its factorization.

2313387961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 43.

The square root of 2313387961 is about 48097.6918469067. The cubic root of 2313387961 is about 1322.5623553991.

The spelling of 2313387961 in words is "two billion, three hundred thirteen million, three hundred eighty-seven thousand, nine hundred sixty-one".