Knight6382 wrote:
if you factory reset an iPhone 13 will you still have your number once you restart it....
Yes. Your number is associated with your carrier and SIM/ eSIM
you only have one AppleID
One account for everything Apple - verify what devices are associated with your ID.
https://appleid.apple.com/
Restore from backup, restore as new device.
Restore your iPhone, iPad, or iPod to factory settings - Apple Support
Turn on and set up iPhone
Turn on and set up iPhone - Apple Support
Set up your iPhone, iPad, or iPod touch - Apple Support
Set up your iPhone or iPad - Apple Support
Use Quick Start to transfer data to a new iPhone, iPad, or iPod touch
Use Quick Start to transfer data to a new iPhone or iPad - Apple Support