12231121132312 has 16 divisors (see below), whose sum is σ = 22933401573600. Its totient is φ = 6115547379360.

The previous prime is 12231121132309. The next prime is 12231121132319. The reversal of 12231121132312 is 21323112113221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231121132319) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3097362 + ... + 5835742.

It is an arithmetic number, because the mean of its divisors is an integer number (1433337598350).

Almost surely, 2^{12231121132312} is an apocalyptic number.

It is an amenable number.

12231121132312 is a deficient number, since it is larger than the sum of its proper divisors (10702280441288).

12231121132312 is a wasteful number, since it uses less digits than its factorization.

12231121132312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3296706 (or 3296702 counting only the distinct ones).

The product of its digits is 864, while the sum is 25.

Adding to 12231121132312 its reverse (21323112113221), we get a palindrome (33554233245533).

The spelling of 12231121132312 in words is "twelve trillion, two hundred thirty-one billion, one hundred twenty-one million, one hundred thirty-two thousand, three hundred twelve".