It is an unprimeable number.
Almost surely, 21206361100 is an apocalyptic number.
1206361100 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 1206361100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1501455984).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1206361100 is a wasteful number, since it uses less digits than its factorization.
1206361100 is an evil number, because the sum of its binary digits is even.
The square root of 1206361100 is about 34732.7093673960. The cubic root of 1206361100 is about 1064.5329492697.
Adding to 1206361100 its reverse (11636021), we get a palindrome (1217997121).
The spelling of 1206361100 in words is "one billion, two hundred six million, three hundred sixty-one thousand, one hundred".