14343001321421 has 2 divisors, whose sum is σ = 14343001321422. Its totient is φ = 14343001321420.

The previous prime is 14343001321409. The next prime is 14343001321447. The reversal of 14343001321421 is 12412310034341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13059470936521 + 1283530384900 = 3613789^2 + 1132930^2 .

It is a cyclic number.

It is not a de Polignac number, because 14343001321421 - 2¹⁰ = 14343001320397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14343001311421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7171500660710 + 7171500660711.

It is an arithmetic number, because the mean of its divisors is an integer number (7171500660711).

Almost surely, 2^{14343001321421} is an apocalyptic number.

It is an amenable number.

14343001321421 is a deficient number, since it is larger than the sum of its proper divisors (1).

14343001321421 is an equidigital number, since it uses as much as digits as its factorization.

14343001321421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 14343001321421 its reverse (12412310034341), we get a palindrome (26755311355762).

The spelling of 14343001321421 in words is "fourteen trillion, three hundred forty-three billion, one million, three hundred twenty-one thousand, four hundred twenty-one".