231

This number is a composite.

The average number of distinct prime divisors for all n less than a googolplex is only about 231. [Wells]

The smallest counterexample to Murthy's Conjecture occurs at n = 231.

231 is the smallest number such that it and its previous number are both the product of three distinct primes (230 = 2*5*23 and 231 = 3*7*11).  [Pankajjyoti]