11133112321 has 4 divisors (see below), whose sum is σ = 11321809200. Its totient is φ = 10944415444.

The previous prime is 11133112273. The next prime is 11133112343. The reversal of 11133112321 is 12321133111.

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 not a de Polignac number, because 11133112321 - 2¹¹ = 11133110273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11133112121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94348351 + ... + 94348468.

It is an arithmetic number, because the mean of its divisors is an integer number (2830452300).

Almost surely, 2^11133112321 is an apocalyptic number.

It is an amenable number.

11133112321 is a deficient number, since it is larger than the sum of its proper divisors (188696879).

11133112321 is an equidigital number, since it uses as much as digits as its factorization.

11133112321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188696878.

The product of its digits is 108, while the sum is 19.

Adding to 11133112321 its reverse (12321133111), we get a palindrome (23454245432).

The spelling of 11133112321 in words is "eleven billion, one hundred thirty-three million, one hundred twelve thousand, three hundred twenty-one".