12320412231 has 32 divisors (see below), whose sum is σ = 18339540480. Its totient is φ = 7320931200.

The previous prime is 12320412217. The next prime is 12320412239. The reversal of 12320412231 is 13221402321.

It is not a de Polignac number, because 12320412231 - 2²⁵ = 12286857799 is a prime.

It is a super-2 number, since 2×12320412231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12320412198 and 12320412207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12320412239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2941 + ... + 157001.

It is an arithmetic number, because the mean of its divisors is an integer number (573110640).

Almost surely, 2^12320412231 is an apocalyptic number.

12320412231 is a deficient number, since it is larger than the sum of its proper divisors (6019128249).

12320412231 is a wasteful number, since it uses less digits than its factorization.

12320412231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154167.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12320412231 its reverse (13221402321), we get a palindrome (25541814552).

The spelling of 12320412231 in words is "twelve billion, three hundred twenty million, four hundred twelve thousand, two hundred thirty-one".