11321121233 has 16 divisors (see below), whose sum is σ = 11729987136. Its totient is φ = 10920786240.

The previous prime is 11321121221. The next prime is 11321121247. The reversal of 11321121233 is 33212112311.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11321121233 - 2¹⁸ = 11320859089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11321121283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 922091 + ... + 934287.

It is an arithmetic number, because the mean of its divisors is an integer number (733124196).

Almost surely, 2^11321121233 is an apocalyptic number.

It is an amenable number.

11321121233 is a deficient number, since it is larger than the sum of its proper divisors (408865903).

11321121233 is a wasteful number, since it uses less digits than its factorization.

11321121233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12544.

The product of its digits is 216, while the sum is 20.

Adding to 11321121233 its reverse (33212112311), we get a palindrome (44533233544).

The spelling of 11321121233 in words is "eleven billion, three hundred twenty-one million, one hundred twenty-one thousand, two hundred thirty-three".