342221303 has 2 divisors, whose sum is σ = 342221304. Its totient is φ = 342221302.

The previous prime is 342221273. The next prime is 342221309. The reversal of 342221303 is 303122243.

It is a strong prime.

It is an emirp because it is prime and its reverse (303122243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 342221303 - 2²⁸ = 73785847 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 (342221309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171110651 + 171110652.

It is an arithmetic number, because the mean of its divisors is an integer number (171110652).

Almost surely, 2^342221303 is an apocalyptic number.

342221303 is a deficient number, since it is larger than the sum of its proper divisors (1).

342221303 is an equidigital number, since it uses as much as digits as its factorization.

342221303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 342221303 is about 18499.2243891467. The cubic root of 342221303 is about 699.4698727726.

Adding to 342221303 its reverse (303122243), we get a palindrome (645343546).

The spelling of 342221303 in words is "three hundred forty-two million, two hundred twenty-one thousand, three hundred three".