It is a plaindrome in base 7.
It is a congruent number.
It is an unprimeable number.
220130 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26784).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20130 is a wasteful number, since it uses less digits than its factorization.
20130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 82.
The square root of 20130 is about 141.8802311811. The cubic root of 20130 is about 27.2028615790.
Adding to 20130 its reverse (3102), we get a palindrome (23232).
The spelling of 20130 in words is "twenty thousand, one hundred thirty".