12321379831 has 8 divisors (see below), whose sum is σ = 12785503104. Its totient is φ = 11865328440.

The previous prime is 12321379817. The next prime is 12321379849. The reversal of 12321379831 is 13897312321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12321379831 - 2¹⁷ = 12321248759 is a prime.

It is a super-2 number, since 2×12321379831² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321379801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2014861 + ... + 2020966.

It is an arithmetic number, because the mean of its divisors is an integer number (1598187888).

Almost surely, 2^12321379831 is an apocalyptic number.

12321379831 is a deficient number, since it is larger than the sum of its proper divisors (464123273).

12321379831 is an equidigital number, since it uses as much as digits as its factorization.

12321379831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4035941.

The product of its digits is 54432, while the sum is 40.

The spelling of 12321379831 in words is "twelve billion, three hundred twenty-one million, three hundred seventy-nine thousand, eight hundred thirty-one".