12123232132 has 12 divisors (see below), whose sum is σ = 23144352336. Its totient is φ = 5510560040.

The previous prime is 12123232111. The next prime is 12123232139. The reversal of 12123232132 is 23123232121.

12123232132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (12123232139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137763958 + ... + 137764045.

It is an arithmetic number, because the mean of its divisors is an integer number (1928696028).

Almost surely, 2^12123232132 is an apocalyptic number.

It is an amenable number.

12123232132 is a deficient number, since it is larger than the sum of its proper divisors (11021120204).

12123232132 is a wasteful number, since it uses less digits than its factorization.

12123232132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275528018 (or 275528016 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

Adding to 12123232132 its reverse (23123232121), we get a palindrome (35246464253).

The spelling of 12123232132 in words is "twelve billion, one hundred twenty-three million, two hundred thirty-two thousand, one hundred thirty-two".