13071109929281 has 2 divisors, whose sum is σ = 13071109929282. Its totient is φ = 13071109929280.

The previous prime is 13071109929187. The next prime is 13071109929289. The reversal of 13071109929281 is 18292990117031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12746392303681 + 324717625600 = 3570209^2 + 569840^2 .

It is a cyclic number.

It is not a de Polignac number, because 13071109929281 - 2³⁴ = 13053930060097 is a prime.

It is a super-2 number, since 2×13071109929281² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13071109929289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6535554964640 + 6535554964641.

It is an arithmetic number, because the mean of its divisors is an integer number (6535554964641).

Almost surely, 2^{13071109929281} is an apocalyptic number.

It is an amenable number.

13071109929281 is a deficient number, since it is larger than the sum of its proper divisors (1).

13071109929281 is an equidigital number, since it uses as much as digits as its factorization.

13071109929281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 53.

The spelling of 13071109929281 in words is "thirteen trillion, seventy-one billion, one hundred nine million, nine hundred twenty-nine thousand, two hundred eighty-one".