12132321306 has 24 divisors (see below), whose sum is σ = 28226217600. Its totient is φ = 3466377432.

The previous prime is 12132321277. The next prime is 12132321307. The reversal of 12132321306 is 60312323121.

It is not an unprimeable number, because it can be changed into a prime (12132321307) 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 11 ways as a sum of consecutive naturals, for example, 20632906 + ... + 20633493.

It is an arithmetic number, because the mean of its divisors is an integer number (1176092400).

Almost surely, 2^12132321306 is an apocalyptic number.

12132321306 is an abundant number, since it is smaller than the sum of its proper divisors (16093896294).

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

12132321306 is a wasteful number, since it uses less digits than its factorization.

12132321306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41266418 (or 41266411 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 12132321306 its reverse (60312323121), we get a palindrome (72444644427).

The spelling of 12132321306 in words is "twelve billion, one hundred thirty-two million, three hundred twenty-one thousand, three hundred six".