242503003 has 2 divisors, whose sum is σ = 242503004. Its totient is φ = 242503002.

The previous prime is 242502991. The next prime is 242503021. The reversal of 242503003 is 300305242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242503003 - 2⁵ = 242502971 is a prime.

It is not a weakly prime, because it can be changed into another prime (242503043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121251501 + 121251502.

It is an arithmetic number, because the mean of its divisors is an integer number (121251502).

Almost surely, 2^242503003 is an apocalyptic number.

242503003 is a deficient number, since it is larger than the sum of its proper divisors (1).

242503003 is an equidigital number, since it uses as much as digits as its factorization.

242503003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 242503003 is about 15572.5079226180. The cubic root of 242503003 is about 623.5994263339.

Adding to 242503003 its reverse (300305242), we get a palindrome (542808245).

The spelling of 242503003 in words is "two hundred forty-two million, five hundred three thousand, three".