Here is a program which generates the integer value of natural language
numbers, e.g. nine hundred twenty eight million two thousand fourteen
--> 928,002,014. The next step is to write a dataset for solving simple
word problem.

http://cypher.monrai.com

Here's the info on the release:

http://blog.monrai.com/2006/08/release-070.html

Cheers,
Sheman