13251215291 has 2 divisors, whose sum is σ = 13251215292. Its totient is φ = 13251215290.

The previous prime is 13251215209. The next prime is 13251215303. The reversal of 13251215291 is 19251215231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13251215291 - 2²² = 13247020987 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (13251215191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6625607645 + 6625607646.

It is an arithmetic number, because the mean of its divisors is an integer number (6625607646).

Almost surely, 2^13251215291 is an apocalyptic number.

13251215291 is a deficient number, since it is larger than the sum of its proper divisors (1).

13251215291 is an equidigital number, since it uses as much as digits as its factorization.

13251215291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 32.

The spelling of 13251215291 in words is "thirteen billion, two hundred fifty-one million, two hundred fifteen thousand, two hundred ninety-one".