12312571 has 2 divisors, whose sum is σ = 12312572. Its totient is φ = 12312570.

The previous prime is 12312557. The next prime is 12312581. The reversal of 12312571 is 17521321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12312571 - 2¹⁵ = 12279803 is a prime.

It is not a weakly prime, because it can be changed into another prime (12312511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6156285 + 6156286.

It is an arithmetic number, because the mean of its divisors is an integer number (6156286).

Almost surely, 2^12312571 is an apocalyptic number.

12312571 is a deficient number, since it is larger than the sum of its proper divisors (1).

12312571 is an equidigital number, since it uses as much as digits as its factorization.

12312571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 420, while the sum is 22.

The square root of 12312571 is about 3508.9273289711. The cubic root of 12312571 is about 230.9136375000.

Adding to 12312571 its reverse (17521321), we get a palindrome (29833892).

The spelling of 12312571 in words is "twelve million, three hundred twelve thousand, five hundred seventy-one".