12431123132 has 18 divisors (see below), whose sum is σ = 22478866704. Its totient is φ = 6015057720.

The previous prime is 12431123069. The next prime is 12431123143. The reversal of 12431123132 is 23132113421.

It is a junction number, because it is equal to n+sod(n) for n = 12431123098 and 12431123107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1613108 + ... + 1620795.

It is an arithmetic number, because the mean of its divisors is an integer number (1248825928).

Almost surely, 2^12431123132 is an apocalyptic number.

It is an amenable number.

12431123132 is a deficient number, since it is larger than the sum of its proper divisors (10047743572).

12431123132 is a wasteful number, since it uses less digits than its factorization.

12431123132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3233969 (or 3233936 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

Adding to 12431123132 its reverse (23132113421), we get a palindrome (35563236553).

The spelling of 12431123132 in words is "twelve billion, four hundred thirty-one million, one hundred twenty-three thousand, one hundred thirty-two".