12031313412 has 12 divisors (see below), whose sum is σ = 28073064656. Its totient is φ = 4010437800.

The previous prime is 12031313401. The next prime is 12031313417. The reversal of 12031313412 is 21431313021.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (12031313417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 501304714 + ... + 501304737.

Almost surely, 2^12031313412 is an apocalyptic number.

12031313412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12031313412 is an abundant number, since it is smaller than the sum of its proper divisors (16041751244).

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

12031313412 is a wasteful number, since it uses less digits than its factorization.

12031313412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002609458 (or 1002609456 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 12031313412 its reverse (21431313021), we get a palindrome (33462626433).

The spelling of 12031313412 in words is "twelve billion, thirty-one million, three hundred thirteen thousand, four hundred twelve".