The help file says /timer[N/name] because you can use a name or a number to identify a timer, /timer1 doesn't mean the first timer in mIRC's internal list ($timer(1)), it means the timer that has the number 1 as id.
$timer(N/name)
Returns the timer id of the Nth timer in the timers list.
Here, the N is the number for the mIRC's internal list so yes, as said, it's impossible to directly access an information about a timer which has a number for id.
