How do I fix this. The task are number for a good reason.
On Todoist.com there is a "gear" icon beside the project name. You can choose Sort by, a date, priority, and name. If you choose name, then your tasks should be organized that way.
So if you have your tasks as "1 name of task", "2 name of task", "3 name of task". Then they should be organized like this.
Todoist on Android should now reflect these changes. If you select Sort By Date on the Web, the Android app should automatically update. A refresh on the app might help.
If you're referring to the iPhone app, that's unfortunately not possible right now, but we will consider adding such option in the future and you're welcome to vote for this request in our Votebox: http://todoist.com/Vote_iOS/showProposal/49/