14340331432421 has 2 divisors, whose sum is σ = 14340331432422. Its totient is φ = 14340331432420.

The previous prime is 14340331432411. The next prime is 14340331432457. The reversal of 14340331432421 is 12423413304341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11553785635396 + 2786545797025 = 3399086^2 + 1669295^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14340331432421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14340331432411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7170165716210 + 7170165716211.

It is an arithmetic number, because the mean of its divisors is an integer number (7170165716211).

Almost surely, 2^{14340331432421} is an apocalyptic number.

It is an amenable number.

14340331432421 is a deficient number, since it is larger than the sum of its proper divisors (1).

14340331432421 is an equidigital number, since it uses as much as digits as its factorization.

14340331432421 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 14340331432421 its reverse (12423413304341), we get a palindrome (26763744736762).

The spelling of 14340331432421 in words is "fourteen trillion, three hundred forty billion, three hundred thirty-one million, four hundred thirty-two thousand, four hundred twenty-one".