12033112312 has 48 divisors (see below), whose sum is σ = 25868309040. Its totient is φ = 5227043328.

The previous prime is 12033112309. The next prime is 12033112321. The reversal of 12033112312 is 21321133021.

It is a self number, because there is not a number n which added to its sum of digits gives 12033112312.

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 11 ways as a sum of consecutive naturals, for example, 238788 + ... + 284755.

It is an arithmetic number, because the mean of its divisors is an integer number (538923105).

Almost surely, 2^12033112312 is an apocalyptic number.

It is an amenable number.

12033112312 is an abundant number, since it is smaller than the sum of its proper divisors (13835196728).

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

12033112312 is a wasteful number, since it uses less digits than its factorization.

12033112312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523592 (or 523575 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12033112312 its reverse (21321133021), we get a palindrome (33354245333).

The spelling of 12033112312 in words is "twelve billion, thirty-three million, one hundred twelve thousand, three hundred twelve".