12020431232 has 32 divisors (see below), whose sum is σ = 24456474720. Its totient is φ = 5882335744.

The previous prime is 12020431231. The next prime is 12020431237. The reversal of 12020431232 is 23213402021.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020431231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 993023 + ... + 1005054.

It is an arithmetic number, because the mean of its divisors is an integer number (764264835).

Almost surely, 2^12020431232 is an apocalyptic number.

It is an amenable number.

12020431232 is an abundant number, since it is smaller than the sum of its proper divisors (12436043488).

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

12020431232 is an equidigital number, since it uses as much as digits as its factorization.

12020431232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998138 (or 1998126 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12020431232 its reverse (23213402021), we get a palindrome (35233833253).

The spelling of 12020431232 in words is "twelve billion, twenty million, four hundred thirty-one thousand, two hundred thirty-two".