12323131321012 has 12 divisors (see below), whose sum is σ = 21567726049156. Its totient is φ = 6160923878400.

The previous prime is 12323131321003. The next prime is 12323131321031. The reversal of 12323131321012 is 21012313132321.

It can be written as a sum of positive squares in 2 ways, for example, as 4423130559376 + 7900000761636 = 2103124^2 + 2810694^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160402323 + ... + 160479130.

Almost surely, 2^{12323131321012} is an apocalyptic number.

It is an amenable number.

12323131321012 is a deficient number, since it is larger than the sum of its proper divisors (9244594728144).

12323131321012 is a wasteful number, since it uses less digits than its factorization.

12323131321012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320891058 (or 320891056 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 12323131321012 its reverse (21012313132321), we get a palindrome (33335444453333).

The spelling of 12323131321012 in words is "twelve trillion, three hundred twenty-three billion, one hundred thirty-one million, three hundred twenty-one thousand, twelve".