11133221320 has 128 divisors (see below), whose sum is σ = 27335024640. Its totient is φ = 4056514560.

The previous prime is 11133221317. The next prime is 11133221357. The reversal of 11133221320 is 2312233111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17368200 + ... + 17368840.

It is an arithmetic number, because the mean of its divisors is an integer number (213554880).

Almost surely, 2^11133221320 is an apocalyptic number.

11133221320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11133221320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13667512320).

11133221320 is an abundant number, since it is smaller than the sum of its proper divisors (16201803320).

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

11133221320 is a wasteful number, since it uses less digits than its factorization.

11133221320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055 (or 1051 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11133221320 its reverse (2312233111), we get a palindrome (13445454431).

The spelling of 11133221320 in words is "eleven billion, one hundred thirty-three million, two hundred twenty-one thousand, three hundred twenty".