12424421447 has 2 divisors, whose sum is σ = 12424421448. Its totient is φ = 12424421446.

The previous prime is 12424421441. The next prime is 12424421467. The reversal of 12424421447 is 74412442421.

It is a weak prime.

It is an emirp because it is prime and its reverse (74412442421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12424421447 - 2⁴ = 12424421431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12424421441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6212210723 + 6212210724.

It is an arithmetic number, because the mean of its divisors is an integer number (6212210724).

Almost surely, 2^12424421447 is an apocalyptic number.

12424421447 is a deficient number, since it is larger than the sum of its proper divisors (1).

12424421447 is an equidigital number, since it uses as much as digits as its factorization.

12424421447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57344, while the sum is 35.

Adding to 12424421447 its reverse (74412442421), we get a palindrome (86836863868).

The spelling of 12424421447 in words is "twelve billion, four hundred twenty-four million, four hundred twenty-one thousand, four hundred forty-seven".