12321310232 has 64 divisors (see below), whose sum is σ = 29126822400. Its totient is φ = 4746551040.

The previous prime is 12321310229. The next prime is 12321310237. The reversal of 12321310232 is 23201312321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321310237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57548 + ... + 167195.

It is an arithmetic number, because the mean of its divisors is an integer number (455106600).

Almost surely, 2^12321310232 is an apocalyptic number.

It is an amenable number.

12321310232 is an abundant number, since it is smaller than the sum of its proper divisors (16805512168).

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

12321310232 is a wasteful number, since it uses less digits than its factorization.

12321310232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224856 (or 224852 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12321310232 its reverse (23201312321), we get a palindrome (35522622553).

The spelling of 12321310232 in words is "twelve billion, three hundred twenty-one million, three hundred ten thousand, two hundred thirty-two".