12031002444 has 24 divisors (see below), whose sum is σ = 28757031408. Its totient is φ = 3912520960.

The previous prime is 12031002377. The next prime is 12031002457. The reversal of 12031002444 is 44420013021.

It is a self number, because there is not a number n which added to its sum of digits gives 12031002444.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12226137 + ... + 12227120.

It is an arithmetic number, because the mean of its divisors is an integer number (1198209642).

Almost surely, 2^12031002444 is an apocalyptic number.

It is an amenable number.

12031002444 is an abundant number, since it is smaller than the sum of its proper divisors (16726028964).

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

12031002444 is a wasteful number, since it uses less digits than its factorization.

12031002444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24453305 (or 24453303 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12031002444 its reverse (44420013021), we get a palindrome (56451015465).

The spelling of 12031002444 in words is "twelve billion, thirty-one million, two thousand, four hundred forty-four".