12309920179201 has 4 divisors (see below), whose sum is σ = 12313905264900. Its totient is φ = 12305935093504.

The previous prime is 12309920179111. The next prime is 12309920179273. The reversal of 12309920179201 is 10297102990321.

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 9537745128976 + 2772175050225 = 3088324^2 + 1664985^2 .

It is a cyclic number.

It is not a de Polignac number, because 12309920179201 - 2²⁵ = 12309886624769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12309920189201) 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, 1992538216 + ... + 1992544393.

It is an arithmetic number, because the mean of its divisors is an integer number (3078476316225).

Almost surely, 2^{12309920179201} is an apocalyptic number.

It is an amenable number.

12309920179201 is a deficient number, since it is larger than the sum of its proper divisors (3985085699).

12309920179201 is an equidigital number, since it uses as much as digits as its factorization.

12309920179201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3985085698.

The product of its (nonzero) digits is 122472, while the sum is 46.

The spelling of 12309920179201 in words is "twelve trillion, three hundred nine billion, nine hundred twenty million, one hundred seventy-nine thousand, two hundred one".