12344321 that’s a radar note. Any combination of numbers that reads the same from either end of the serial number is a radar note. Yours are not. Another example is 53899835.
Not radar notes. You've got a couple short sequences that repeat but those serial numbers wouldn't add a collectible premium. The note on the right has a serial of 35500004. To be a radar, it would have to be 35500553.
Nope. They look like spenders. Some information for future reference - http://www.coolserialnumbers.com/FancySerialNumbers.aspx