12031032320 has 44 divisors (see below), whose sum is σ = 28860390984. Its totient is φ = 4812410880.

The previous prime is 12031032319. The next prime is 12031032323. The reversal of 12031032320 is 2323013021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031032323) 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, 1169786 + ... + 1180025.

Almost surely, 2^12031032320 is an apocalyptic number.

12031032320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12031032320 is an abundant number, since it is smaller than the sum of its proper divisors (16829358664).

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

12031032320 is an equidigital number, since it uses as much as digits as its factorization.

12031032320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2349836 (or 2349818 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 12031032320 its reverse (2323013021), we get a palindrome (14354045341).

The spelling of 12031032320 in words is "twelve billion, thirty-one million, thirty-two thousand, three hundred twenty".