12312112132 has 12 divisors (see below), whose sum is σ = 21551688256. Its totient is φ = 6154486920.

The previous prime is 12312112123. The next prime is 12312112177. The reversal of 12312112132 is 23121121321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374544 + ... + 406087.

Almost surely, 2^12312112132 is an apocalyptic number.

It is an amenable number.

12312112132 is a deficient number, since it is larger than the sum of its proper divisors (9239576124).

12312112132 is a wasteful number, since it uses less digits than its factorization.

12312112132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784578 (or 784576 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

Adding to 12312112132 its reverse (23121121321), we get a palindrome (35433233453).

The spelling of 12312112132 in words is "twelve billion, three hundred twelve million, one hundred twelve thousand, one hundred thirty-two".