Adding to 111020 its reverse (20111), we get a palindrome (131131).
Subtracting from 111020 its reverse (20111), we obtain a palindrome (90909).
It is a happy number.
111020 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
2111020 is an apocalyptic number.
111020 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 111020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145824).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
111020 is a wasteful number, since it uses less digits than its factorization.
111020 is an odious number, because the sum of its binary digits is odd.
The square root of 111020 is about 333.1966386385. The cubic root of 111020 is about 48.0618415875.
The spelling of 111020 in words is "one hundred eleven thousand, twenty", and thus it is an iban number.