13023207793 has 4 divisors (see below), whose sum is σ = 13375186420. Its totient is φ = 12671229168.

The previous prime is 13023207781. The next prime is 13023207809. The reversal of 13023207793 is 39770232031.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12185510544 + 837697249 = 110388^2 + 28943^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13023207793 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 351978589 = 13023207793 / (1 + 3 + 0 + 2 + 3 + 2 + 0 + 7 + 7 + 9 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13023207193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175989258 + ... + 175989331.

It is an arithmetic number, because the mean of its divisors is an integer number (3343796605).

Almost surely, 2^13023207793 is an apocalyptic number.

It is an amenable number.

13023207793 is a deficient number, since it is larger than the sum of its proper divisors (351978627).

13023207793 is an equidigital number, since it uses as much as digits as its factorization.

13023207793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351978626.

The product of its (nonzero) digits is 47628, while the sum is 37.

The spelling of 13023207793 in words is "thirteen billion, twenty-three million, two hundred seven thousand, seven hundred ninety-three".