12002312144 has 20 divisors (see below), whose sum is σ = 23263674720. Its totient is φ = 5998783200.

The previous prime is 12002312131. The next prime is 12002312159. The reversal of 12002312144 is 44121320021.

It is a congruent number.

It is an unprimeable number.

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, 106214 + ... + 187845.

It is an arithmetic number, because the mean of its divisors is an integer number (1163183736).

Almost surely, 2^12002312144 is an apocalyptic number.

It is an amenable number.

12002312144 is a deficient number, since it is larger than the sum of its proper divisors (11261362576).

12002312144 is a wasteful number, since it uses less digits than its factorization.

12002312144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296618 (or 296612 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12002312144 its reverse (44121320021), we get a palindrome (56123632165).

The spelling of 12002312144 in words is "twelve billion, two million, three hundred twelve thousand, one hundred forty-four".