12043111312 has 20 divisors (see below), whose sum is σ = 23349203100. Its totient is φ = 6017510528.

The previous prime is 12043111303. The next prime is 12043111319. The reversal of 12043111312 is 21311134021.

12043111312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11604460176 + 438651136 = 107724^2 + 20944^2 .

It is a super-2 number, since 2×12043111312² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12043111312.

It is not an unprimeable number, because it can be changed into a prime (12043111319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228187 + ... + 275962.

It is an arithmetic number, because the mean of its divisors is an integer number (1167460155).

Almost surely, 2^12043111312 is an apocalyptic number.

It is an amenable number.

12043111312 is a deficient number, since it is larger than the sum of its proper divisors (11306091788).

12043111312 is a wasteful number, since it uses less digits than its factorization.

12043111312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505650 (or 505644 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12043111312 its reverse (21311134021), we get a palindrome (33354245333).

The spelling of 12043111312 in words is "twelve billion, forty-three million, one hundred eleven thousand, three hundred twelve".