14343123340421 has 2 divisors, whose sum is σ = 14343123340422. Its totient is φ = 14343123340420.

The previous prime is 14343123340367. The next prime is 14343123340453. The reversal of 14343123340421 is 12404332134341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11746803424321 + 2596319916100 = 3427361^2 + 1611310^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14343123340421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14343123340471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7171561670210 + 7171561670211.

It is an arithmetic number, because the mean of its divisors is an integer number (7171561670211).

Almost surely, 2^{14343123340421} is an apocalyptic number.

It is an amenable number.

14343123340421 is a deficient number, since it is larger than the sum of its proper divisors (1).

14343123340421 is an equidigital number, since it uses as much as digits as its factorization.

14343123340421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 14343123340421 its reverse (12404332134341), we get a palindrome (26747455474762).

The spelling of 14343123340421 in words is "fourteen trillion, three hundred forty-three billion, one hundred twenty-three million, three hundred forty thousand, four hundred twenty-one".