12406531244 has 12 divisors (see below), whose sum is σ = 21849720144. Its totient is φ = 6163754064.

The previous prime is 12406531237. The next prime is 12406531253. The reversal of 12406531244 is 44213560421.

It is a self number, because there is not a number n which added to its sum of digits gives 12406531244.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9877184 + ... + 9878439.

It is an arithmetic number, because the mean of its divisors is an integer number (1820810012).

Almost surely, 2^12406531244 is an apocalyptic number.

It is an amenable number.

12406531244 is a deficient number, since it is larger than the sum of its proper divisors (9443188900).

12406531244 is a wasteful number, since it uses less digits than its factorization.

12406531244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19755784 (or 19755782 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 12406531244 in words is "twelve billion, four hundred six million, five hundred thirty-one thousand, two hundred forty-four".