11321110321 has 6 divisors (see below), whose sum is σ = 11422196630. Its totient is φ = 11220910848.

The previous prime is 11321110291. The next prime is 11321110337. The reversal of 11321110321 is 12301112311.

It is a happy number.

11321110321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 823058721 + 10498051600 = 28689^2 + 102460^2 .

It is not a de Polignac number, because 11321110321 - 2²¹ = 11319013169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11321110295 and 11321110304.

It is not an unprimeable number, because it can be changed into a prime (11321110121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 430536 + ... + 456073.

Almost surely, 2^11321110321 is an apocalyptic number.

It is an amenable number.

11321110321 is a deficient number, since it is larger than the sum of its proper divisors (101086309).

11321110321 is an frugal number, since it uses more digits than its factorization.

11321110321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886835 (or 886722 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 11321110321 its reverse (12301112311), we get a palindrome (23622222632).

The spelling of 11321110321 in words is "eleven billion, three hundred twenty-one million, one hundred ten thousand, three hundred twenty-one".