My note3 always sends messages by itself, and always gives the number 10658422 (ps: What is the mobile phone display?

I don't know if there is any deduction, but this phenomenon is the method of Niumang software, and it may be that the mobile phone is poisoned. Your description is not comprehensive enough. Did you just buy such a mobile phone or did it happen later? Under normal circumstances, Samsung mobile phones do not have such software when they leave the factory. You can use antivirus software to clean it up. Of course, the cleanest way is to brush the phone, find the corresponding firmware version of the phone in Samsung official website, and brush the phone. At present, you can also do this: back up important data, restore the factory settings of the mobile phone, install antivirus software first, and then use it. Pay attention to the application market provided by Samsung mobile phone when downloading the program! Of course, if you have a strong ability to identify the program website, you can also download it elsewhere.