12380205931 has 4 divisors (see below), whose sum is σ = 12564985192. Its totient is φ = 12195426672.

The previous prime is 12380205907. The next prime is 12380205947. The reversal of 12380205931 is 13950208321.

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 12380205931 - 2⁵ = 12380205899 is a prime.

It is a super-2 number, since 2×12380205931² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12380205631) 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, 92389530 + ... + 92389663.

It is an arithmetic number, because the mean of its divisors is an integer number (3141246298).

Almost surely, 2^12380205931 is an apocalyptic number.

12380205931 is a deficient number, since it is larger than the sum of its proper divisors (184779261).

12380205931 is an equidigital number, since it uses as much as digits as its factorization.

12380205931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184779260.

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 12380205931 in words is "twelve billion, three hundred eighty million, two hundred five thousand, nine hundred thirty-one".