11133212203 has 12 divisors (see below), whose sum is σ = 11756916288. Its totient is φ = 10541055600.

The previous prime is 11133212159. The next prime is 11133212213. The reversal of 11133212203 is 30221233111.

It is not a de Polignac number, because 11133212203 - 2²⁵ = 11099657771 is a prime.

It is a super-2 number, since 2×11133212203² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11133212213) 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 11 ways as a sum of consecutive naturals, for example, 678150 + ... + 694372.

It is an arithmetic number, because the mean of its divisors is an integer number (979743024).

Almost surely, 2^11133212203 is an apocalyptic number.

11133212203 is a deficient number, since it is larger than the sum of its proper divisors (623704085).

11133212203 is a wasteful number, since it uses less digits than its factorization.

11133212203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18162 (or 18143 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11133212203 its reverse (30221233111), we get a palindrome (41354445314).

The spelling of 11133212203 in words is "eleven billion, one hundred thirty-three million, two hundred twelve thousand, two hundred three".