13430203 has 4 divisors (see below), whose sum is σ = 13716000. Its totient is φ = 13144408.

The previous prime is 13430177. The next prime is 13430213. The reversal of 13430203 is 30203431.

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

It is a cyclic number.

It is not a de Polignac number, because 13430203 - 2⁵ = 13430171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13430213) 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, 142828 + ... + 142921.

It is an arithmetic number, because the mean of its divisors is an integer number (3429000).

Almost surely, 2^13430203 is an apocalyptic number.

13430203 is a deficient number, since it is larger than the sum of its proper divisors (285797).

13430203 is an equidigital number, since it uses as much as digits as its factorization.

13430203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285796.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 13430203 is about 3664.7241369577. The cubic root of 13430203 is about 237.6990936279.

Adding to 13430203 its reverse (30203431), we get a palindrome (43633634).

The spelling of 13430203 in words is "thirteen million, four hundred thirty thousand, two hundred three".