12231201232 has 10 divisors (see below), whose sum is σ = 23697952418. Its totient is φ = 6115600608.

The previous prime is 12231201163. The next prime is 12231201233. The reversal of 12231201232 is 23210213221.

It can be written as a sum of positive squares in only one way, i.e., 10777761856 + 1453439376 = 103816^2 + 38124^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231201233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382225023 + ... + 382225054.

Almost surely, 2^12231201232 is an apocalyptic number.

It is an amenable number.

12231201232 is a deficient number, since it is larger than the sum of its proper divisors (11466751186).

12231201232 is an equidigital number, since it uses as much as digits as its factorization.

12231201232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764450085 (or 764450079 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12231201232 its reverse (23210213221), we get a palindrome (35441414453).

The spelling of 12231201232 in words is "twelve billion, two hundred thirty-one million, two hundred one thousand, two hundred thirty-two".