12031931124 has 72 divisors (see below), whose sum is σ = 31014503520. Its totient is φ = 3931837632.

The previous prime is 12031931123. The next prime is 12031931137. The reversal of 12031931124 is 42113913021.

12031931124 is a `hidden beast` number, since 12 + 0 + 319 + 311 + 24 = 666.

12031931124 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031931123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 784659 + ... + 799845.

Almost surely, 2^12031931124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12031931124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15507251760).

12031931124 is an abundant number, since it is smaller than the sum of its proper divisors (18982572396).

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

12031931124 is a wasteful number, since it uses less digits than its factorization.

12031931124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15629 (or 15624 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The spelling of 12031931124 in words is "twelve billion, thirty-one million, nine hundred thirty-one thousand, one hundred twenty-four".