203004423 has 6 divisors (see below), whose sum is σ = 293228624. Its totient is φ = 135336276.

The previous prime is 203004397. The next prime is 203004443. The reversal of 203004423 is 324400302.

It is not a de Polignac number, because 203004423 - 2¹⁰ = 203003399 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203004396 and 203004405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203004443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11278015 + ... + 11278032.

Almost surely, 2^203004423 is an apocalyptic number.

203004423 is a deficient number, since it is larger than the sum of its proper divisors (90224201).

203004423 is a wasteful number, since it uses less digits than its factorization.

203004423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22556053 (or 22556050 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 203004423 is about 14247.9620648007. The cubic root of 203004423 is about 587.7173342889.

Adding to 203004423 its reverse (324400302), we get a palindrome (527404725).

The spelling of 203004423 in words is "two hundred three million, four thousand, four hundred twenty-three".