Bill,
The answer depends on here you live.
In the USA billion is 1 000 000 000 and a trillion is 1 000 000 000 000 so a trillion is a thousand times a billion.
In Great Briton a billion is 1 000 000 000 000 and a trillion is 1 000 000 000 000 000 000 so a trillion is a million times a billion.
There is a more complete description of the two naming systems in Billions and more! and in Billions and more! and even more!
Penny
