12331232 has 12 divisors (see below), whose sum is σ = 24277176. Its totient is φ = 6165600.

The previous prime is 12331223. The next prime is 12331237. The reversal of 12331232 is 23213321.

It is a self number, because there is not a number n which added to its sum of digits gives 12331232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12331237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192644 + ... + 192707.

It is an arithmetic number, because the mean of its divisors is an integer number (2023098).

Almost surely, 2^12331232 is an apocalyptic number.

It is an amenable number.

12331232 is a deficient number, since it is larger than the sum of its proper divisors (11945944).

12331232 is an equidigital number, since it uses as much as digits as its factorization.

12331232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385361 (or 385353 counting only the distinct ones).

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

The square root of 12331232 is about 3511.5853969397. The cubic root of 12331232 is about 231.0302366047.

Adding to 12331232 its reverse (23213321), we get a palindrome (35544553).

The spelling of 12331232 in words is "twelve million, three hundred thirty-one thousand, two hundred thirty-two".