12031440112 has 20 divisors (see below), whose sum is σ = 23750745480. Its totient is φ = 5902215488.

The previous prime is 12031440079. The next prime is 12031440133. The reversal of 12031440112 is 21104413021.

It is a self number, because there is not a number n which added to its sum of digits gives 12031440112.

It is a congruent number.

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, 7093162 + ... + 7094857.

It is an arithmetic number, because the mean of its divisors is an integer number (1187537274).

Almost surely, 2^12031440112 is an apocalyptic number.

It is an amenable number.

12031440112 is a deficient number, since it is larger than the sum of its proper divisors (11719305368).

12031440112 is a wasteful number, since it uses less digits than its factorization.

12031440112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14188080 (or 14188074 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12031440112 its reverse (21104413021), we get a palindrome (33135853133).

The spelling of 12031440112 in words is "twelve billion, thirty-one million, four hundred forty thousand, one hundred twelve".