I think the D120 is the maximum possible isohedral (geometrically symmetric) fair die. A golf ball is probably pretty close to fair, though number 327 seems like it might be more difficult to balance than 12, 20, 30, or 60.
Oh yeah u right, i didnt even look that close. I just assumed nobody would create such an asymmetrical atrocity. I can never look at golf balls the same. Not that i do ever look at them.
In case it's a genuine a question, there isn't an opposite side to odd-sided dice. Had it been a d326 it would have been 326+1 in total, if it were a d328 it would be 328+1