14243422421 has 2 divisors, whose sum is σ = 14243422422. Its totient is φ = 14243422420.

The previous prime is 14243422399. The next prime is 14243422423. The reversal of 14243422421 is 12422434241.

It is a happy number.

14243422421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13250542321 + 992880100 = 115111^2 + 31510^2 .

It is a cyclic number.

It is not a de Polignac number, because 14243422421 - 2¹⁰ = 14243421397 is a prime.

Together with 14243422423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14243422423) 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, 7121711210 + 7121711211.

It is an arithmetic number, because the mean of its divisors is an integer number (7121711211).

Almost surely, 2^14243422421 is an apocalyptic number.

It is an amenable number.

14243422421 is a deficient number, since it is larger than the sum of its proper divisors (1).

14243422421 is an equidigital number, since it uses as much as digits as its factorization.

14243422421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12288, while the sum is 29.

Adding to 14243422421 its reverse (12422434241), we get a palindrome (26665856662).

The spelling of 14243422421 in words is "fourteen billion, two hundred forty-three million, four hundred twenty-two thousand, four hundred twenty-one".