11021322320 has 40 divisors (see below), whose sum is σ = 25629375240. Its totient is φ = 4407703040.

The previous prime is 11021322289. The next prime is 11021322329. The reversal of 11021322320 is 2322312011.

It can be written as a sum of positive squares in 4 ways, for example, as 507691024 + 10513631296 = 22532^2 + 102536^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021322329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594146 + ... + 612414.

It is an arithmetic number, because the mean of its divisors is an integer number (640734381).

Almost surely, 2^11021322320 is an apocalyptic number.

11021322320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11021322320 is an abundant number, since it is smaller than the sum of its proper divisors (14608052920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11021322320 is a wasteful number, since it uses less digits than its factorization.

11021322320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25823 (or 25817 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 11021322320 its reverse (2322312011), we get a palindrome (13343634331).

The spelling of 11021322320 in words is "eleven billion, twenty-one million, three hundred twenty-two thousand, three hundred twenty".