12421104239 has 2 divisors, whose sum is σ = 12421104240. Its totient is φ = 12421104238.

The previous prime is 12421104233. The next prime is 12421104259. The reversal of 12421104239 is 93240112421.

12421104239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (93240112421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12421104239 - 2⁸ = 12421103983 is a prime.

It is a super-2 number, since 2×12421104239² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12421104233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6210552119 + 6210552120.

It is an arithmetic number, because the mean of its divisors is an integer number (6210552120).

Almost surely, 2^12421104239 is an apocalyptic number.

12421104239 is a deficient number, since it is larger than the sum of its proper divisors (1).

12421104239 is an equidigital number, since it uses as much as digits as its factorization.

12421104239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 12421104239 in words is "twelve billion, four hundred twenty-one million, one hundred four thousand, two hundred thirty-nine".