12412421447 has 2 divisors, whose sum is σ = 12412421448. Its totient is φ = 12412421446.

The previous prime is 12412421389. The next prime is 12412421491. The reversal of 12412421447 is 74412421421.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12412421447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12412621447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6206210723 + 6206210724.

It is an arithmetic number, because the mean of its divisors is an integer number (6206210724).

Almost surely, 2^12412421447 is an apocalyptic number.

12412421447 is a deficient number, since it is larger than the sum of its proper divisors (1).

12412421447 is an equidigital number, since it uses as much as digits as its factorization.

12412421447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14336, while the sum is 32.

Adding to 12412421447 its reverse (74412421421), we get a palindrome (86824842868).

The spelling of 12412421447 in words is "twelve billion, four hundred twelve million, four hundred twenty-one thousand, four hundred forty-seven".