12431042120 has 32 divisors (see below), whose sum is σ = 31965537600. Its totient is φ = 4262071488.

The previous prime is 12431042069. The next prime is 12431042147. The reversal of 12431042120 is 2124013421.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12431042092 and 12431042101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22198010 + ... + 22198569.

It is an arithmetic number, because the mean of its divisors is an integer number (998923050).

Almost surely, 2^12431042120 is an apocalyptic number.

12431042120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12431042120 is an abundant number, since it is smaller than the sum of its proper divisors (19534495480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12431042120 is a wasteful number, since it uses less digits than its factorization.

12431042120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44396597 (or 44396593 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12431042120 its reverse (2124013421), we get a palindrome (14555055541).

The spelling of 12431042120 in words is "twelve billion, four hundred thirty-one million, forty-two thousand, one hundred twenty".