12232023312 has 40 divisors (see below), whose sum is σ = 32370115680. Its totient is φ = 3977893120.

The previous prime is 12232023269. The next prime is 12232023403. The reversal of 12232023312 is 21332023221.

It is a happy number.

It is a super-2 number, since 2×12232023312² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3105762 + ... + 3109697.

It is an arithmetic number, because the mean of its divisors is an integer number (809252892).

Almost surely, 2^12232023312 is an apocalyptic number.

12232023312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12232023312 is an abundant number, since it is smaller than the sum of its proper divisors (20138092368).

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

12232023312 is a wasteful number, since it uses less digits than its factorization.

12232023312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6215511 (or 6215505 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12232023312 its reverse (21332023221), we get a palindrome (33564046533).

Subtracting 12232023312 from its reverse (21332023221), we obtain a palindrome (9099999909).

The spelling of 12232023312 in words is "twelve billion, two hundred thirty-two million, twenty-three thousand, three hundred twelve".