12031231332 has 12 divisors (see below), whose sum is σ = 28072873136. Its totient is φ = 4010410440.

The previous prime is 12031231327. The next prime is 12031231337. The reversal of 12031231332 is 23313213021.

It is an interprime number because it is at equal distance from previous prime (12031231327) and next prime (12031231337).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 12031231299 and 12031231308.

It is not an unprimeable number, because it can be changed into a prime (12031231337) 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, 501301294 + ... + 501301317.

Almost surely, 2^12031231332 is an apocalyptic number.

12031231332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12031231332 is an abundant number, since it is smaller than the sum of its proper divisors (16041641804).

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

12031231332 is a wasteful number, since it uses less digits than its factorization.

12031231332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002602618 (or 1002602616 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 12031231332 its reverse (23313213021), we get a palindrome (35344444353).

The spelling of 12031231332 in words is "twelve billion, thirty-one million, two hundred thirty-one thousand, three hundred thirty-two".