12320312132 has 12 divisors (see below), whose sum is σ = 21673430016. Its totient is φ = 6127903560.

The previous prime is 12320312093. The next prime is 12320312161. The reversal of 12320312132 is 23121302321.

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, 8062268 + ... + 8063795.

It is an arithmetic number, because the mean of its divisors is an integer number (1806119168).

Almost surely, 2^12320312132 is an apocalyptic number.

It is an amenable number.

12320312132 is a deficient number, since it is larger than the sum of its proper divisors (9353117884).

12320312132 is a wasteful number, since it uses less digits than its factorization.

12320312132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16126258 (or 16126256 counting only the distinct ones).

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

Adding to 12320312132 its reverse (23121302321), we get a palindrome (35441614453).

The spelling of 12320312132 in words is "twelve billion, three hundred twenty million, three hundred twelve thousand, one hundred thirty-two".