12244302321 has 4 divisors (see below), whose sum is σ = 16325736432. Its totient is φ = 8162868212.

The previous prime is 12244302307. The next prime is 12244302383. The reversal of 12244302321 is 12320344221.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12320344221 = 3 ⋅4106781407.

It is a cyclic number.

It is not a de Polignac number, because 12244302321 - 2¹⁰ = 12244301297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12244302291 and 12244302300.

It is not an unprimeable number, because it can be changed into a prime (12244303321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2040717051 + ... + 2040717056.

It is an arithmetic number, because the mean of its divisors is an integer number (4081434108).

Almost surely, 2^12244302321 is an apocalyptic number.

It is an amenable number.

12244302321 is a deficient number, since it is larger than the sum of its proper divisors (4081434111).

12244302321 is an equidigital number, since it uses as much as digits as its factorization.

12244302321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4081434110.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12244302321 its reverse (12320344221), we get a palindrome (24564646542).

The spelling of 12244302321 in words is "twelve billion, two hundred forty-four million, three hundred two thousand, three hundred twenty-one".