12321232 has 80 divisors (see below), whose sum is σ = 30390912. Its totient is φ = 4700160.

The previous prime is 12321227. The next prime is 12321241. The reversal of 12321232 is 23212321.

12321232 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89868 + ... + 90004.

Almost surely, 2^12321232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12321232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15195456).

12321232 is an abundant number, since it is smaller than the sum of its proper divisors (18069680).

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

12321232 is a wasteful number, since it uses less digits than its factorization.

12321232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 230 counting only the distinct ones).

The product of its digits is 144, while the sum is 16.

The square root of 12321232 is about 3510.1612498573. The cubic root of 12321232 is about 230.9677684707.

12321232 divided by its sum of digits (16) gives a palindrome (770077).

Adding to 12321232 its reverse (23212321), we get a palindrome (35533553).

The spelling of 12321232 in words is "twelve million, three hundred twenty-one thousand, two hundred thirty-two".