13031020799 has 4 divisors (see below), whose sum is σ = 13065044736. Its totient is φ = 12996996864.

The previous prime is 13031020759. The next prime is 13031020823. The reversal of 13031020799 is 99702013031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13031020799 - 2⁸ = 13031020543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031020759) 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 in 3 ways as a sum of consecutive naturals, for example, 17011394 + ... + 17012159.

It is an arithmetic number, because the mean of its divisors is an integer number (3266261184).

Almost surely, 2^13031020799 is an apocalyptic number.

13031020799 is a deficient number, since it is larger than the sum of its proper divisors (34023937).

13031020799 is an equidigital number, since it uses as much as digits as its factorization.

13031020799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34023936.

The product of its (nonzero) digits is 10206, while the sum is 35.

The spelling of 13031020799 in words is "thirteen billion, thirty-one million, twenty thousand, seven hundred ninety-nine".