12530847731 has 2 divisors, whose sum is σ = 12530847732. Its totient is φ = 12530847730.

The previous prime is 12530847697. The next prime is 12530847733. The reversal of 12530847731 is 13774803521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12530847731 - 2¹⁰ = 12530846707 is a prime.

It is a super-2 number, since 2×12530847731² (a number of 21 digits) contains 22 as substring.

Together with 12530847733, 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 (12530847733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6265423865 + 6265423866.

It is an arithmetic number, because the mean of its divisors is an integer number (6265423866).

Almost surely, 2^12530847731 is an apocalyptic number.

12530847731 is a deficient number, since it is larger than the sum of its proper divisors (1).

12530847731 is an equidigital number, since it uses as much as digits as its factorization.

12530847731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 12530847731 in words is "twelve billion, five hundred thirty million, eight hundred forty-seven thousand, seven hundred thirty-one".