13000232173 has 2 divisors, whose sum is σ = 13000232174. Its totient is φ = 13000232172.

The previous prime is 13000232159. The next prime is 13000232207. The reversal of 13000232173 is 37123200031.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6626285604 + 6373946569 = 81402^2 + 79837^2 .

It is a cyclic number.

It is not a de Polignac number, because 13000232173 - 2³³ = 4410297581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13000236173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6500116086 + 6500116087.

It is an arithmetic number, because the mean of its divisors is an integer number (6500116087).

Almost surely, 2^13000232173 is an apocalyptic number.

It is an amenable number.

13000232173 is a deficient number, since it is larger than the sum of its proper divisors (1).

13000232173 is an equidigital number, since it uses as much as digits as its factorization.

13000232173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 22.

The spelling of 13000232173 in words is "thirteen billion, two hundred thirty-two thousand, one hundred seventy-three".