11323330221 has 16 divisors (see below), whose sum is σ = 17287606784. Its totient is φ = 6458096304.

The previous prime is 11323330217. The next prime is 11323330237. The reversal of 11323330221 is 12203332311.

It is not a de Polignac number, because 11323330221 - 2² = 11323330217 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11323330121) 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, 504511 + ... + 526476.

It is an arithmetic number, because the mean of its divisors is an integer number (1080475424).

Almost surely, 2^11323330221 is an apocalyptic number.

It is an amenable number.

11323330221 is a deficient number, since it is larger than the sum of its proper divisors (5964276563).

11323330221 is a wasteful number, since it uses less digits than its factorization.

11323330221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031520.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 11323330221 its reverse (12203332311), we get a palindrome (23526662532).

The spelling of 11323330221 in words is "eleven billion, three hundred twenty-three million, three hundred thirty thousand, two hundred twenty-one".