12321144660323 has 4 divisors (see below), whose sum is σ = 12331830823368. Its totient is φ = 12310458497280.

The previous prime is 12321144660289. The next prime is 12321144660329. The reversal of 12321144660323 is 32306644112321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12321144660323 - 2¹⁴ = 12321144643939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12321144660329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5343079793 + ... + 5343082098.

It is an arithmetic number, because the mean of its divisors is an integer number (3082957705842).

Almost surely, 2^{12321144660323} is an apocalyptic number.

12321144660323 is a deficient number, since it is larger than the sum of its proper divisors (10686163045).

12321144660323 is a wasteful number, since it uses less digits than its factorization.

12321144660323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10686163044.

The product of its (nonzero) digits is 124416, while the sum is 38.

Adding to 12321144660323 its reverse (32306644112321), we get a palindrome (44627788772644).

The spelling of 12321144660323 in words is "twelve trillion, three hundred twenty-one billion, one hundred forty-four million, six hundred sixty thousand, three hundred twenty-three".