23403203 has 16 divisors (see below), whose sum is σ = 26347680. Its totient is φ = 20676096.

The previous prime is 23403161. The next prime is 23403209. The reversal of 23403203 is 30230432.

It is a cyclic number.

It is not a de Polignac number, because 23403203 - 2⁸ = 23402947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23403209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17600 + ... + 18882.

It is an arithmetic number, because the mean of its divisors is an integer number (1646730).

Almost surely, 2^23403203 is an apocalyptic number.

23403203 is a deficient number, since it is larger than the sum of its proper divisors (2944477).

23403203 is a wasteful number, since it uses less digits than its factorization.

23403203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366.

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 23403203 is about 4837.6857070298. The cubic root of 23403203 is about 286.0389004417.

Adding to 23403203 its reverse (30230432), we get a palindrome (53633635).

The spelling of 23403203 in words is "twenty-three million, four hundred three thousand, two hundred three".