2312627561 has 2 divisors, whose sum is σ = 2312627562. Its totient is φ = 2312627560.

The previous prime is 2312627557. The next prime is 2312627563. The reversal of 2312627561 is 1657262132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1404750400 + 907877161 = 37480^2 + 30131^2 .

It is a cyclic number.

It is not a de Polignac number, because 2312627561 - 2² = 2312627557 is a prime.

Together with 2312627563, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2312627563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1156313780 + 1156313781.

It is an arithmetic number, because the mean of its divisors is an integer number (1156313781).

Almost surely, 2^2312627561 is an apocalyptic number.

It is an amenable number.

2312627561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2312627561 is an equidigital number, since it uses as much as digits as its factorization.

2312627561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 35.

The square root of 2312627561 is about 48089.7864520108. The cubic root of 2312627561 is about 1322.4174327951.

Adding to 2312627561 its reverse (1657262132), we get a palindrome (3969889693).

The spelling of 2312627561 in words is "two billion, three hundred twelve million, six hundred twenty-seven thousand, five hundred sixty-one".