12323113221 has 16 divisors (see below), whose sum is σ = 17657002944. Its totient is φ = 7616742144.

The previous prime is 12323113207. The next prime is 12323113223. The reversal of 12323113221 is 12231132321.

It is not a de Polignac number, because 12323113221 - 2¹¹ = 12323111173 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12323113223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1799790 + ... + 1806623.

It is an arithmetic number, because the mean of its divisors is an integer number (1103562684).

Almost surely, 2^12323113221 is an apocalyptic number.

It is an amenable number.

12323113221 is a deficient number, since it is larger than the sum of its proper divisors (5333889723).

12323113221 is a wasteful number, since it uses less digits than its factorization.

12323113221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3606500.

The product of its digits is 432, while the sum is 21.

Adding to 12323113221 its reverse (12231132321), we get a palindrome (24554245542).

The spelling of 12323113221 in words is "twelve billion, three hundred twenty-three million, one hundred thirteen thousand, two hundred twenty-one".