12321133321112 has 128 divisors (see below), whose sum is σ = 30063506227200. Its totient is φ = 4590417744000.

The previous prime is 12321133320971. The next prime is 12321133321129. The reversal of 12321133321112 is 21112333112321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50301737 + ... + 50546087.

It is an arithmetic number, because the mean of its divisors is an integer number (234871142400).

Almost surely, 2^{12321133321112} 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 12321133321112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15031753113600).

12321133321112 is an abundant number, since it is smaller than the sum of its proper divisors (17742372906088).

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

12321133321112 is a wasteful number, since it uses less digits than its factorization.

12321133321112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247957 (or 247953 counting only the distinct ones).

The product of its digits is 1296, while the sum is 26.

Adding to 12321133321112 its reverse (21112333112321), we get a palindrome (33433466433433).

The spelling of 12321133321112 in words is "twelve trillion, three hundred twenty-one billion, one hundred thirty-three million, three hundred twenty-one thousand, one hundred twelve".