Adding to 11388 its reverse (88311), we get a palindrome (99699).
It is a happy number.
It is an Ulam number.
It is a plaindrome in base 10.
It is a congruent number.
211388 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 11388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14504).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
11388 is a wasteful number, since it uses less digits than its factorization.
11388 is an evil number, because the sum of its binary digits is even.
The square root of 11388 is about 106.7145725756. The cubic root of 11388 is about 22.4982714722.
The spelling of 11388 in words is "eleven thousand, three hundred eighty-eight".