11203012211 has 4 divisors (see below), whose sum is σ = 11203241952. Its totient is φ = 11202782472.

The previous prime is 11203012207. The next prime is 11203012253. The reversal of 11203012211 is 11221030211.

11203012211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11221030211 = 105563 ⋅106297.

It is a cyclic number.

It is not a de Polignac number, because 11203012211 - 2² = 11203012207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11203012411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9515 + ... + 149988.

It is an arithmetic number, because the mean of its divisors is an integer number (2800810488).

Almost surely, 2^11203012211 is an apocalyptic number.

11203012211 is a deficient number, since it is larger than the sum of its proper divisors (229741).

11203012211 is an equidigital number, since it uses as much as digits as its factorization.

11203012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229740.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11203012211 its reverse (11221030211), we get a palindrome (22424042422).

The spelling of 11203012211 in words is "eleven billion, two hundred three million, twelve thousand, two hundred eleven".