12331232001 has 24 divisors (see below), whose sum is σ = 19469286720. Its totient is φ = 7458760800.

The previous prime is 12331231993. The next prime is 12331232027. The reversal of 12331232001 is 10023213321.

12331232001 is a `hidden beast` number, since 12 + 331 + 2 + 320 + 0 + 1 = 666.

It is not a de Polignac number, because 12331232001 - 2³ = 12331231993 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12331232701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71965 + ... + 172746.

It is an arithmetic number, because the mean of its divisors is an integer number (811220280).

Almost surely, 2^12331232001 is an apocalyptic number.

12331232001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12331232001 is a deficient number, since it is larger than the sum of its proper divisors (7138054719).

12331232001 is a wasteful number, since it uses less digits than its factorization.

12331232001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245237 (or 245234 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12331232001 its reverse (10023213321), we get a palindrome (22354445322).

The spelling of 12331232001 in words is "twelve billion, three hundred thirty-one million, two hundred thirty-two thousand, one".