12033431320 has 32 divisors (see below), whose sum is σ = 27704880720. Its totient is φ = 4701432960.

The previous prime is 12033431309. The next prime is 12033431323. The reversal of 12033431320 is 2313433021.

It is a junction number, because it is equal to n+sod(n) for n = 12033431291 and 12033431300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12033431323) 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 7 ways as a sum of consecutive naturals, for example, 3496371 + ... + 3499810.

Almost surely, 2^12033431320 is an apocalyptic number.

12033431320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12033431320 is an abundant number, since it is smaller than the sum of its proper divisors (15671449400).

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

12033431320 is a wasteful number, since it uses less digits than its factorization.

12033431320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6996235 (or 6996231 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 12033431320 its reverse (2313433021), we get a palindrome (14346864341).

The spelling of 12033431320 in words is "twelve billion, thirty-three million, four hundred thirty-one thousand, three hundred twenty".