243222103 has 2 divisors, whose sum is σ = 243222104. Its totient is φ = 243222102.

The previous prime is 243221989. The next prime is 243222143. The reversal of 243222103 is 301222342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243222103 - 2¹⁷ = 243091031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243222143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121611051 + 121611052.

It is an arithmetic number, because the mean of its divisors is an integer number (121611052).

Almost surely, 2^243222103 is an apocalyptic number.

243222103 is a deficient number, since it is larger than the sum of its proper divisors (1).

243222103 is an equidigital number, since it uses as much as digits as its factorization.

243222103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 243222103 is about 15595.5795980784. The cubic root of 243222103 is about 624.2152095387.

Adding to 243222103 its reverse (301222342), we get a palindrome (544444445).

The spelling of 243222103 in words is "two hundred forty-three million, two hundred twenty-two thousand, one hundred three".