14012142421 has 2 divisors, whose sum is σ = 14012142422. Its totient is φ = 14012142420.

The previous prime is 14012142377. The next prime is 14012142437. The reversal of 14012142421 is 12424121041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12917459025 + 1094683396 = 113655^2 + 33086^2 .

It is a cyclic number.

It is not a de Polignac number, because 14012142421 - 2⁷ = 14012142293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14012142392 and 14012142401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14012142451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7006071210 + 7006071211.

It is an arithmetic number, because the mean of its divisors is an integer number (7006071211).

Almost surely, 2^14012142421 is an apocalyptic number.

It is an amenable number.

14012142421 is a deficient number, since it is larger than the sum of its proper divisors (1).

14012142421 is an equidigital number, since it uses as much as digits as its factorization.

14012142421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 14012142421 its reverse (12424121041), we get a palindrome (26436263462).

The spelling of 14012142421 in words is "fourteen billion, twelve million, one hundred forty-two thousand, four hundred twenty-one".