11011320 has 96 divisors (see below), whose sum is σ = 36363600. Its totient is φ = 2889216.

The previous prime is 11011307. The next prime is 11011321. The reversal of 11011320 is 2311011.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26071 + ... + 26489.

Almost surely, 2^11011320 is an apocalyptic number.

11011320 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 11011320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18181800).

11011320 is an abundant number, since it is smaller than the sum of its proper divisors (25352280).

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

11011320 is a wasteful number, since it uses less digits than its factorization.

11011320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 11011320 is about 3318.3309057416. The cubic root of 11011320 is about 222.4742721588.

Adding to 11011320 its reverse (2311011), we get a palindrome (13322331).

The spelling of 11011320 in words is "eleven million, eleven thousand, three hundred twenty".