342021103 has 2 divisors, whose sum is σ = 342021104. Its totient is φ = 342021102.

The previous prime is 342021091. The next prime is 342021149. The reversal of 342021103 is 301120243.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (301120243) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342021103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342021403) 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, 171010551 + 171010552.

It is an arithmetic number, because the mean of its divisors is an integer number (171010552).

Almost surely, 2^342021103 is an apocalyptic number.

342021103 is a deficient number, since it is larger than the sum of its proper divisors (1).

342021103 is an equidigital number, since it uses as much as digits as its factorization.

342021103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 342021103 is about 18493.8125598807. The cubic root of 342021103 is about 699.3334491749. Note that the first 3 decimals are identical.

Adding to 342021103 its reverse (301120243), we get a palindrome (643141346).

The spelling of 342021103 in words is "three hundred forty-two million, twenty-one thousand, one hundred three".