12331244432 has 20 divisors (see below), whose sum is σ = 25729616220. Its totient is φ = 5691343488.

The previous prime is 12331244413. The next prime is 12331244531. The reversal of 12331244432 is 23444213321.

It can be written as a sum of positive squares in 2 ways, for example, as 3149005456 + 9182238976 = 56116^2 + 95824^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12331244395 and 12331244404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29642207 + ... + 29642622.

It is an arithmetic number, because the mean of its divisors is an integer number (1286480811).

Almost surely, 2^12331244432 is an apocalyptic number.

It is an amenable number.

12331244432 is an abundant number, since it is smaller than the sum of its proper divisors (13398371788).

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

12331244432 is a wasteful number, since it uses less digits than its factorization.

12331244432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59284850 (or 59284844 counting only the distinct ones).

The product of its digits is 13824, while the sum is 29.

Adding to 12331244432 its reverse (23444213321), we get a palindrome (35775457753).

The spelling of 12331244432 in words is "twelve billion, three hundred thirty-one million, two hundred forty-four thousand, four hundred thirty-two".