12530662531 has 2 divisors, whose sum is σ = 12530662532. Its totient is φ = 12530662530.

The previous prime is 12530662511. The next prime is 12530662537. The reversal of 12530662531 is 13526603521.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12530662531 is a prime.

It is a super-2 number, since 2×12530662531² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12530662537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6265331265 + 6265331266.

It is an arithmetic number, because the mean of its divisors is an integer number (6265331266).

Almost surely, 2^12530662531 is an apocalyptic number.

12530662531 is a deficient number, since it is larger than the sum of its proper divisors (1).

12530662531 is an equidigital number, since it uses as much as digits as its factorization.

12530662531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 34.

The spelling of 12530662531 in words is "twelve billion, five hundred thirty million, six hundred sixty-two thousand, five hundred thirty-one".