12323201223 has 4 divisors (see below), whose sum is σ = 16430934968. Its totient is φ = 8215467480.

The previous prime is 12323201197. The next prime is 12323201227. The reversal of 12323201223 is 32210232321.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-12323201223 is a prime.

It is a super-2 number, since 2×12323201223² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12323201223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12323201227) 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, 2053866868 + ... + 2053866873.

It is an arithmetic number, because the mean of its divisors is an integer number (4107733742).

Almost surely, 2^12323201223 is an apocalyptic number.

12323201223 is a deficient number, since it is larger than the sum of its proper divisors (4107733745).

12323201223 is an equidigital number, since it uses as much as digits as its factorization.

12323201223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4107733744.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12323201223 its reverse (32210232321), we get a palindrome (44533433544).

The spelling of 12323201223 in words is "twelve billion, three hundred twenty-three million, two hundred one thousand, two hundred twenty-three".