12323434221 has 24 divisors (see below), whose sum is σ = 20350499520. Its totient is φ = 7039521216.

The previous prime is 12323434183. The next prime is 12323434241. The reversal of 12323434221 is 12243432321.

12323434221 is a `hidden beast` number, since 1 + 2 + 3 + 2 + 3 + 434 + 221 = 666.

It is not a de Polignac number, because 12323434221 - 2⁶ = 12323434157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12323434241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157801 + ... + 222593.

It is an arithmetic number, because the mean of its divisors is an integer number (847937480).

Almost surely, 2^12323434221 is an apocalyptic number.

It is an amenable number.

12323434221 is a deficient number, since it is larger than the sum of its proper divisors (8027065299).

12323434221 is a wasteful number, since it uses less digits than its factorization.

12323434221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67825 (or 67822 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

Adding to 12323434221 its reverse (12243432321), we get a palindrome (24566866542).

The spelling of 12323434221 in words is "twelve billion, three hundred twenty-three million, four hundred thirty-four thousand, two hundred twenty-one".