11443130203 has 4 divisors (see below), whose sum is σ = 11456179120. Its totient is φ = 11430081288.

The previous prime is 11443130191. The next prime is 11443130221. The reversal of 11443130203 is 30203134411.

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 11443130203 - 2¹⁷ = 11442999131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11443130273) 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, 6523143 + ... + 6524896.

It is an arithmetic number, because the mean of its divisors is an integer number (2864044780).

Almost surely, 2^11443130203 is an apocalyptic number.

11443130203 is a deficient number, since it is larger than the sum of its proper divisors (13048917).

11443130203 is an equidigital number, since it uses as much as digits as its factorization.

11443130203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13048916.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 11443130203 its reverse (30203134411), we get a palindrome (41646264614).

The spelling of 11443130203 in words is "eleven billion, four hundred forty-three million, one hundred thirty thousand, two hundred three".