12713028521 has 2 divisors, whose sum is σ = 12713028522. Its totient is φ = 12713028520.

The previous prime is 12713028499. The next prime is 12713028563. The reversal of 12713028521 is 12582031721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11559475225 + 1153553296 = 107515^2 + 33964^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12713028521 is a prime.

It is not a weakly prime, because it can be changed into another prime (12713021521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6356514260 + 6356514261.

It is an arithmetic number, because the mean of its divisors is an integer number (6356514261).

Almost surely, 2^12713028521 is an apocalyptic number.

It is an amenable number.

12713028521 is a deficient number, since it is larger than the sum of its proper divisors (1).

12713028521 is an equidigital number, since it uses as much as digits as its factorization.

12713028521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 32.

The spelling of 12713028521 in words is "twelve billion, seven hundred thirteen million, twenty-eight thousand, five hundred twenty-one".