11121111233 has 4 divisors (see below), whose sum is σ = 11225046960. Its totient is φ = 11017175508.

The previous prime is 11121111173. The next prime is 11121111247. The reversal of 11121111233 is 33211112111.

11121111233 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11121111233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11121141233) 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, 51967703 + ... + 51967916.

It is an arithmetic number, because the mean of its divisors is an integer number (2806261740).

Almost surely, 2^11121111233 is an apocalyptic number.

It is an amenable number.

11121111233 is a deficient number, since it is larger than the sum of its proper divisors (103935727).

11121111233 is a wasteful number, since it uses less digits than its factorization.

11121111233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103935726.

The product of its digits is 36, while the sum is 17.

Adding to 11121111233 its reverse (33211112111), we get a palindrome (44332223344).

The spelling of 11121111233 in words is "eleven billion, one hundred twenty-one million, one hundred eleven thousand, two hundred thirty-three".