Is there a way to find a node by number in LTspice?

Select the schematic (just click on it to make sure it is "current") and then go to View/Spice Netlist. That should pop up a nice text box of your circuit. You can then hit ctrl-F to do a find (search) for your node. (Just enter the node name into the "find" box.) From that, you can easily find each associated part that mentions the node, thereby finding all of the resistors, capacitors, etc., and their designations (names.) Now knowing all the parts that connect to that node, this might make it a little easier for you when going back to look at the schematic.

It certainly helps me. If I know that R29, R31, C12, and Q4 all reference that node, then I usually can find the node in short order.

I don't know of a way to cause the node to highlight itself, by name, though.

Actually there's an easier way.... I never thought in simply trying Ctrl+F on the main window hahaha. That's all you have to do! Ctrl+F on the circuit and a search box will appear. You can search nodes and components there. I just tried. Example:

Does exactly what @jonk was hoping to find: highlight the node. Not sure why this is now shown on the submenus or on the Hot Keys section of Settings. If it is on the submenus, I don't find it. And I found the shortcut by accident. Didn't know what happened for that to appear. Until I tried the most simple shortcut and it worked xD.