12244342321 has 4 divisors (see below), whose sum is σ = 12529094512. Its totient is φ = 11959590132.

The previous prime is 12244342309. The next prime is 12244342373. The reversal of 12244342321 is 12324344221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12244342321 - 2¹⁹ = 12243818033 is a prime.

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 12244342321.

It is not an unprimeable number, because it can be changed into a prime (12244312321) 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, 142376031 + ... + 142376116.

It is an arithmetic number, because the mean of its divisors is an integer number (3132273628).

Almost surely, 2^12244342321 is an apocalyptic number.

It is an amenable number.

12244342321 is a deficient number, since it is larger than the sum of its proper divisors (284752191).

12244342321 is an equidigital number, since it uses as much as digits as its factorization.

12244342321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284752190.

The product of its digits is 9216, while the sum is 28.

Adding to 12244342321 its reverse (12324344221), we get a palindrome (24568686542).

The spelling of 12244342321 in words is "twelve billion, two hundred forty-four million, three hundred forty-two thousand, three hundred twenty-one".