how can I track my lost iphone 13 when I know IMEI number

The IMEI number cannot be used to track an Iphone. It's just useful to report your lost iPhone to your carrier or to the police station.

All you can do in such a situation is listed here:--> If your iPhone, iPad, or iPod touch is lost or stolen - Apple Support, and/or here:--> Use the Find My app to locate a missing device or item - Apple Support

Regards

Giulio

You're most welcome.

(I know my answer isn't quite what you expected, but ... I don't think it's fair to give you hopes that can't materialize)

Giulio