12132320312 has 64 divisors (see below), whose sum is σ = 27104647680. Its totient is φ = 4982769792.

The previous prime is 12132320311. The next prime is 12132320327. The reversal of 12132320312 is 21302323121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132320311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80093 + ... + 175155.

It is an arithmetic number, because the mean of its divisors is an integer number (423510120).

Almost surely, 2^12132320312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12132320312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13552323840).

12132320312 is an abundant number, since it is smaller than the sum of its proper divisors (14972327368).

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

12132320312 is a wasteful number, since it uses less digits than its factorization.

12132320312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95172 (or 95168 counting only the distinct ones).

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

Adding to 12132320312 its reverse (21302323121), we get a palindrome (33434643433).

The spelling of 12132320312 in words is "twelve billion, one hundred thirty-two million, three hundred twenty thousand, three hundred twelve".