13231521713 has 2 divisors, whose sum is σ = 13231521714. Its totient is φ = 13231521712.

The previous prime is 13231521707. The next prime is 13231521727. The reversal of 13231521713 is 31712513231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7774301584 + 5457220129 = 88172^2 + 73873^2 .

It is a cyclic number.

It is not a de Polignac number, because 13231521713 - 2¹² = 13231517617 is a prime.

It is not a weakly prime, because it can be changed into another prime (13231521703) 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, 6615760856 + 6615760857.

It is an arithmetic number, because the mean of its divisors is an integer number (6615760857).

Almost surely, 2^13231521713 is an apocalyptic number.

It is an amenable number.

13231521713 is a deficient number, since it is larger than the sum of its proper divisors (1).

13231521713 is an equidigital number, since it uses as much as digits as its factorization.

13231521713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 29.

The spelling of 13231521713 in words is "thirteen billion, two hundred thirty-one million, five hundred twenty-one thousand, seven hundred thirteen".