iPhone 11 appears hacked

Tonight my daughter tried to do a google search on her phone. It was like it had a bug/was hacked as the whole thing locked up. Now there is a box around the time on her home screen. Any time a notification comes through, "Suri" tells you which she didn't do before. She also tells the time every few minutes. When you swipe up to unlock, it does nothing and then will finally pull up the number screen but looks a little off and will recite each number as you try and put it in. I've done a hard rest multiple times and it won't change anything. I'm trying to log into her iCloud remotely and wipe the phone to factory settings, but it says the password is not valid. If I try and reset the password, the alert goes to her phone which I can't access. Please help!