12313262161 has 2 divisors, whose sum is σ = 12313262162. Its totient is φ = 12313262160.

The previous prime is 12313262149. The next prime is 12313262167. The reversal of 12313262161 is 16126231321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9614979136 + 2698283025 = 98056^2 + 51945^2 .

It is a cyclic number.

It is not a de Polignac number, because 12313262161 - 2²⁵ = 12279707729 is a prime.

It is not a weakly prime, because it can be changed into another prime (12313262167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6156631080 + 6156631081.

It is an arithmetic number, because the mean of its divisors is an integer number (6156631081).

Almost surely, 2^12313262161 is an apocalyptic number.

It is an amenable number.

12313262161 is a deficient number, since it is larger than the sum of its proper divisors (1).

12313262161 is an equidigital number, since it uses as much as digits as its factorization.

12313262161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 28.

Adding to 12313262161 its reverse (16126231321), we get a palindrome (28439493482).

The spelling of 12313262161 in words is "twelve billion, three hundred thirteen million, two hundred sixty-two thousand, one hundred sixty-one".