12343004221 has 2 divisors, whose sum is σ = 12343004222. Its totient is φ = 12343004220.

The previous prime is 12343004213. The next prime is 12343004287. The reversal of 12343004221 is 12240034321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6670805625 + 5672198596 = 81675^2 + 75314^2 .

It is a cyclic number.

It is not a de Polignac number, because 12343004221 - 2³ = 12343004213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12343004192 and 12343004201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12343005221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6171502110 + 6171502111.

It is an arithmetic number, because the mean of its divisors is an integer number (6171502111).

Almost surely, 2^12343004221 is an apocalyptic number.

It is an amenable number.

12343004221 is a deficient number, since it is larger than the sum of its proper divisors (1).

12343004221 is an equidigital number, since it uses as much as digits as its factorization.

12343004221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12343004221 its reverse (12240034321), we get a palindrome (24583038542).

The spelling of 12343004221 in words is "twelve billion, three hundred forty-three million, four thousand, two hundred twenty-one".