12232013312 has 40 divisors (see below), whose sum is σ = 24901325856. Its totient is φ = 6000596992.

The previous prime is 12232013291. The next prime is 12232013329. The reversal of 12232013312 is 21331023221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198248 + ... + 252519.

Almost surely, 2^12232013312 is an apocalyptic number.

It is an amenable number.

12232013312 is an abundant number, since it is smaller than the sum of its proper divisors (12669312544).

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

12232013312 is an frugal number, since it uses more digits than its factorization.

12232013312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450838 (or 450822 counting only the distinct ones).

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

Adding to 12232013312 its reverse (21331023221), we get a palindrome (33563036533).

Subtracting 12232013312 from its reverse (21331023221), we obtain a palindrome (9099009909).

The spelling of 12232013312 in words is "twelve billion, two hundred thirty-two million, thirteen thousand, three hundred twelve".