13040231304673 has 4 divisors (see below), whose sum is σ = 13489894453140. Its totient is φ = 12590568156208.

The previous prime is 13040231304643. The next prime is 13040231304703. The reversal of 13040231304673 is 37640313204031.

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

It is an interprime number because it is at equal distance from previous prime (13040231304643) and next prime (13040231304703).

It can be written as a sum of positive squares in 2 ways, for example, as 4024966837824 + 9015264466849 = 2006232^2 + 3002543^2 .

It is a cyclic number.

It is not a de Polignac number, because 13040231304673 - 2¹⁷ = 13040231173601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13040231304623) 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, 224831574190 + ... + 224831574247.

It is an arithmetic number, because the mean of its divisors is an integer number (3372473613285).

Almost surely, 2^{13040231304673} is an apocalyptic number.

It is an amenable number.

13040231304673 is a deficient number, since it is larger than the sum of its proper divisors (449663148467).

13040231304673 is an equidigital number, since it uses as much as digits as its factorization.

13040231304673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449663148466.

The product of its (nonzero) digits is 108864, while the sum is 37.

The spelling of 13040231304673 in words is "thirteen trillion, forty billion, two hundred thirty-one million, three hundred four thousand, six hundred seventy-three".