12711251317 has 2 divisors, whose sum is σ = 12711251318. Its totient is φ = 12711251316.

The previous prime is 12711251297. The next prime is 12711251347. The reversal of 12711251317 is 71315211721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8903620881 + 3807630436 = 94359^2 + 61706^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12711251317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12711251347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6355625658 + 6355625659.

It is an arithmetic number, because the mean of its divisors is an integer number (6355625659).

Almost surely, 2^12711251317 is an apocalyptic number.

It is an amenable number.

12711251317 is a deficient number, since it is larger than the sum of its proper divisors (1).

12711251317 is an equidigital number, since it uses as much as digits as its factorization.

12711251317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2940, while the sum is 31.

The spelling of 12711251317 in words is "twelve billion, seven hundred eleven million, two hundred fifty-one thousand, three hundred seventeen".