203242223 has 2 divisors, whose sum is σ = 203242224. Its totient is φ = 203242222.

The previous prime is 203242219. The next prime is 203242229. The reversal of 203242223 is 322242302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203242223 - 2² = 203242219 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 203242195 and 203242204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203242229) 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, 101621111 + 101621112.

It is an arithmetic number, because the mean of its divisors is an integer number (101621112).

Almost surely, 2^203242223 is an apocalyptic number.

203242223 is a deficient number, since it is larger than the sum of its proper divisors (1).

203242223 is an equidigital number, since it uses as much as digits as its factorization.

203242223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 203242223 is about 14256.3046754760. The cubic root of 203242223 is about 587.9467293666.

Adding to 203242223 its reverse (322242302), we get a palindrome (525484525).

The spelling of 203242223 in words is "two hundred three million, two hundred forty-two thousand, two hundred twenty-three".