11113332321 has 64 divisors (see below), whose sum is σ = 19334905856. Its totient is φ = 5519404800.

The previous prime is 11113332311. The next prime is 11113332323. The reversal of 11113332321 is 12323331111.

It is a happy number.

It is not a de Polignac number, because 11113332321 - 2²³ = 11104943713 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (11113332323) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 295386 + ... + 330876.

It is an arithmetic number, because the mean of its divisors is an integer number (302107904).

Almost surely, 2^11113332321 is an apocalyptic number.

It is an amenable number.

11113332321 is a deficient number, since it is larger than the sum of its proper divisors (8221573535).

11113332321 is a wasteful number, since it uses less digits than its factorization.

11113332321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35582.

The product of its digits is 324, while the sum is 21.

Adding to 11113332321 its reverse (12323331111), we get a palindrome (23436663432).

The spelling of 11113332321 in words is "eleven billion, one hundred thirteen million, three hundred thirty-two thousand, three hundred twenty-one".