13203143 has 4 divisors (see below), whose sum is σ = 13210560. Its totient is φ = 13195728.

The previous prime is 13203139. The next prime is 13203167. The reversal of 13203143 is 34130231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 34130231 = 1259 ⋅27109.

It is a cyclic number.

It is not a de Polignac number, because 13203143 - 2² = 13203139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13203103) 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, 746 + ... + 5192.

It is an arithmetic number, because the mean of its divisors is an integer number (3302640).

Almost surely, 2^13203143 is an apocalyptic number.

13203143 is a deficient number, since it is larger than the sum of its proper divisors (7417).

13203143 is an equidigital number, since it uses as much as digits as its factorization.

13203143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7416.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 13203143 is about 3633.6129403116. The cubic root of 13203143 is about 236.3519060567.

Adding to 13203143 its reverse (34130231), we get a palindrome (47333374).

The spelling of 13203143 in words is "thirteen million, two hundred three thousand, one hundred forty-three".