203023 has 2 divisors, whose sum is σ = 203024. Its totient is φ = 203022.

The previous prime is 203017. The next prime is 203039. The reversal of 203023 is 320302.

203023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203023 is a prime.

203023 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101511 + 101512.

It is an arithmetic number, because the mean of its divisors is an integer number (101512).

2²⁰³⁰²³ is an apocalyptic number.

203023 is a deficient number, since it is larger than the sum of its proper divisors (1).

203023 is an equidigital number, since it uses as much as digits as its factorization.

203023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 10.

The square root of 203023 is about 450.5807363836. The cubic root of 203023 is about 58.7735261143.

Adding to 203023 its reverse (320302), we get a palindrome (523325).

It can be divided in two parts, 20302 and 3, that multiplied together give a palindrome (60906).

The spelling of 203023 in words is "two hundred three thousand, twenty-three", and thus it is an iban number.