13131326573 has 2 divisors, whose sum is σ = 13131326574. Its totient is φ = 13131326572.

The previous prime is 13131326567. The next prime is 13131326581. The reversal of 13131326573 is 37562313131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9954651529 + 3176675044 = 99773^2 + 56362^2 .

It is a cyclic number.

It is not a de Polignac number, because 13131326573 - 2⁴ = 13131326557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13131326503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6565663286 + 6565663287.

It is an arithmetic number, because the mean of its divisors is an integer number (6565663287).

Almost surely, 2^13131326573 is an apocalyptic number.

It is an amenable number.

13131326573 is a deficient number, since it is larger than the sum of its proper divisors (1).

13131326573 is an equidigital number, since it uses as much as digits as its factorization.

13131326573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34020, while the sum is 35.

The spelling of 13131326573 in words is "thirteen billion, one hundred thirty-one million, three hundred twenty-six thousand, five hundred seventy-three".