342643834320503 has 2 divisors, whose sum is σ = 342643834320504. Its totient is φ = 342643834320502.

The previous prime is 342643834320457. The next prime is 342643834320527. The reversal of 342643834320503 is 305023438346243.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 342643834320503 - 2¹⁸ = 342643834058359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342643834320533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171321917160251 + 171321917160252.

It is an arithmetic number, because the mean of its divisors is an integer number (171321917160252).

Almost surely, 2^{342643834320503} is an apocalyptic number.

342643834320503 is a deficient number, since it is larger than the sum of its proper divisors (1).

342643834320503 is an equidigital number, since it uses as much as digits as its factorization.

342643834320503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14929920, while the sum is 50.

The spelling of 342643834320503 in words is "three hundred forty-two trillion, six hundred forty-three billion, eight hundred thirty-four million, three hundred twenty thousand, five hundred three".