12129403924 has 48 divisors (see below), whose sum is σ = 24184169856. Its totient is φ = 5269017600.

The previous prime is 12129403889. The next prime is 12129403931. The reversal of 12129403924 is 42930492121.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1307944 + ... + 1317184.

It is an arithmetic number, because the mean of its divisors is an integer number (503836872).

Almost surely, 2^12129403924 is an apocalyptic number.

It is an amenable number.

12129403924 is a deficient number, since it is larger than the sum of its proper divisors (12054765932).

12129403924 is a wasteful number, since it uses less digits than its factorization.

12129403924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10576 (or 10574 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 12129403924 in words is "twelve billion, one hundred twenty-nine million, four hundred three thousand, nine hundred twenty-four".