12033311312 has 40 divisors (see below), whose sum is σ = 25440728832. Its totient is φ = 5468249600.

The previous prime is 12033311309. The next prime is 12033311357. The reversal of 12033311312 is 21311333021.

It is a super-2 number, since 2×12033311312² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 956648 + ... + 969144.

Almost surely, 2^12033311312 is an apocalyptic number.

It is an amenable number.

12033311312 is an abundant number, since it is smaller than the sum of its proper divisors (13407417520).

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

12033311312 is a wasteful number, since it uses less digits than its factorization.

12033311312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17987 (or 17981 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 12033311312 its reverse (21311333021), we get a palindrome (33344644333).

The spelling of 12033311312 in words is "twelve billion, thirty-three million, three hundred eleven thousand, three hundred twelve".