13140203 has 4 divisors (see below), whose sum is σ = 13156920. Its totient is φ = 13123488.

The previous prime is 13140181. The next prime is 13140209. The reversal of 13140203 is 30204131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30204131 = 157 ⋅192383.

It is a cyclic number.

It is not a de Polignac number, because 13140203 - 2⁸ = 13139947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13140209) 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, 7118 + ... + 8771.

It is an arithmetic number, because the mean of its divisors is an integer number (3289230).

Almost surely, 2^13140203 is an apocalyptic number.

13140203 is a deficient number, since it is larger than the sum of its proper divisors (16717).

13140203 is an equidigital number, since it uses as much as digits as its factorization.

13140203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16716.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 13140203 is about 3624.9417926361. The cubic root of 13140203 is about 235.9757408273.

Adding to 13140203 its reverse (30204131), we get a palindrome (43344334).

The spelling of 13140203 in words is "thirteen million, one hundred forty thousand, two hundred three".