11133111203 has 4 divisors (see below), whose sum is σ = 11133837480. Its totient is φ = 11132384928.

The previous prime is 11133111191. The next prime is 11133111217. The reversal of 11133111203 is 30211133111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30211133111 = 31 ⋅974552681.

It is a cyclic number.

It is not a de Polignac number, because 11133111203 - 2⁶ = 11133111139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11133111233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339638 + ... + 370971.

It is an arithmetic number, because the mean of its divisors is an integer number (2783459370).

Almost surely, 2^11133111203 is an apocalyptic number.

11133111203 is a deficient number, since it is larger than the sum of its proper divisors (726277).

11133111203 is an equidigital number, since it uses as much as digits as its factorization.

11133111203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726276.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 11133111203 its reverse (30211133111), we get a palindrome (41344244314).

The spelling of 11133111203 in words is "eleven billion, one hundred thirty-three million, one hundred eleven thousand, two hundred three".