It is an Ulam number.
It is an alternating number because its digits alternate between odd and even.
1230 is an undulating number in base 9.
It is a plaindrome in base 16.
It is a nialpdrome in base 6 and base 12.
It is a congruent number.
21230 is an apocalyptic number.
1230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 1230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1512).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1230 is a wasteful number, since it uses less digits than its factorization.
1230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 51.
The square root of 1230 is about 35.0713558335. The cubic root of 1230 is about 10.7144126969.
Adding to 1230 its reverse (321), we get a palindrome (1551).
Subtracting from 1230 its reverse (321), we obtain a palindrome (909).
The spelling of 1230 in words is "one thousand, two hundred thirty".