343342421423 has 2 divisors, whose sum is σ = 343342421424. Its totient is φ = 343342421422.

The previous prime is 343342421419. The next prime is 343342421503. The reversal of 343342421423 is 324124243343.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 343342421423 - 2² = 343342421419 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343342421413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171671210711 + 171671210712.

It is an arithmetic number, because the mean of its divisors is an integer number (171671210712).

Almost surely, 2^343342421423 is an apocalyptic number.

343342421423 is a deficient number, since it is larger than the sum of its proper divisors (1).

343342421423 is an equidigital number, since it uses as much as digits as its factorization.

343342421423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 35.

Adding to 343342421423 its reverse (324124243343), we get a palindrome (667466664766).

The spelling of 343342421423 in words is "three hundred forty-three billion, three hundred forty-two million, four hundred twenty-one thousand, four hundred twenty-three".