12117047144 has 16 divisors (see below), whose sum is σ = 22737081120. Its totient is φ = 6053825520.

The previous prime is 12117047141. The next prime is 12117047147. The reversal of 12117047144 is 44174071121.

It is an interprime number because it is at equal distance from previous prime (12117047141) and next prime (12117047147).

It is a self number, because there is not a number n which added to its sum of digits gives 12117047144.

It is not an unprimeable number, because it can be changed into a prime (12117047141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 576284 + ... + 596939.

It is an arithmetic number, because the mean of its divisors is an integer number (1421067570).

Almost surely, 2^12117047144 is an apocalyptic number.

It is an amenable number.

12117047144 is a deficient number, since it is larger than the sum of its proper divisors (10620033976).

12117047144 is a wasteful number, since it uses less digits than its factorization.

12117047144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174520 (or 1174516 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 32.

The spelling of 12117047144 in words is "twelve billion, one hundred seventeen million, forty-seven thousand, one hundred forty-four".