12131043204 has 24 divisors (see below), whose sum is σ = 32349448768. Its totient is φ = 3466012320.

The previous prime is 12131043193. The next prime is 12131043227. The reversal of 12131043204 is 40234013121.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72208507 + ... + 72208674.

Almost surely, 2^12131043204 is an apocalyptic number.

12131043204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12131043204 is an abundant number, since it is smaller than the sum of its proper divisors (20218405564).

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

12131043204 is a wasteful number, since it uses less digits than its factorization.

12131043204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144417195 (or 144417193 counting only the distinct ones).

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

Adding to 12131043204 its reverse (40234013121), we get a palindrome (52365056325).

The spelling of 12131043204 in words is "twelve billion, one hundred thirty-one million, forty-three thousand, two hundred four".