11121121233 has 12 divisors (see below), whose sum is σ = 16658799248. Its totient is φ = 7414080660.

The previous prime is 11121121201. The next prime is 11121121237. The reversal of 11121121233 is 33212112111.

It is not a de Polignac number, because 11121121233 - 2⁵ = 11121121201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11121121237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22882723 + ... + 22883208.

Almost surely, 2^11121121233 is an apocalyptic number.

It is an amenable number.

11121121233 is a deficient number, since it is larger than the sum of its proper divisors (5537678015).

11121121233 is an frugal number, since it uses more digits than its factorization.

11121121233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45765946 (or 45765934 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

Adding to 11121121233 its reverse (33212112111), we get a palindrome (44333233344).

The spelling of 11121121233 in words is "eleven billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred thirty-three".