230403 has 4 divisors (see below), whose sum is σ = 307208. Its totient is φ = 153600.

The previous prime is 230393. The next prime is 230431. The reversal of 230403 is 304032.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 230403 - 2⁴ = 230387 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38398 + ... + 38403.

It is an arithmetic number, because the mean of its divisors is an integer number (76802).

2²³⁰⁴⁰³ is an apocalyptic number.

230403 is a deficient number, since it is larger than the sum of its proper divisors (76805).

230403 is an equidigital number, since it uses as much as digits as its factorization.

230403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76804.

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 230403 is about 480.0031249898. The cubic root of 230403 is about 61.3050206700.

Adding to 230403 its reverse (304032), we get a palindrome (534435).

It can be divided in two parts, 2 and 30403, that multiplied together give a palindrome (60806).

The spelling of 230403 in words is "two hundred thirty thousand, four hundred three".