203023241 has 2 divisors, whose sum is σ = 203023242. Its totient is φ = 203023240.

The previous prime is 203023211. The next prime is 203023273. The reversal of 203023241 is 142320302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164583241 + 38440000 = 12829^2 + 6200^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203023241 is a prime.

It is a super-2 number, since 2×203023241² = 82436872772288162, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (203023211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101511620 + 101511621.

It is an arithmetic number, because the mean of its divisors is an integer number (101511621).

Almost surely, 2^203023241 is an apocalyptic number.

It is an amenable number.

203023241 is a deficient number, since it is larger than the sum of its proper divisors (1).

203023241 is an equidigital number, since it uses as much as digits as its factorization.

203023241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 203023241 is about 14248.6224246416. The cubic root of 203023241 is about 587.7354937013.

Adding to 203023241 its reverse (142320302), we get a palindrome (345343543).

The spelling of 203023241 in words is "two hundred three million, twenty-three thousand, two hundred forty-one".