calculatorapp.exe is a application which is most likely legit. So, if calculatorapp.exe is on your PC, it is most likely ok, and will NOT cause problems. Even if your system is virus-free, it is still recommended to use a well-known antivirus with a good track record, in order to yourself your system against viruses and malware.
Normally, this application is found in C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_11.2311.0.0_x64__8wekyb3d8bbwe\CalculatorApp.exe.
The MD5 checksum for this executable is be3bcadc0fd36eb3fe6b46f655fb39be.
This program does NOT operate as a Windows service. This is usually a good sign.
64-bit code has been detected. This exe can exploit the full power of a current PC processor.
The description present in the program is Calculator.
File version 11.2311.0.0.
Publisher Microsoft Corporation.
Legal copyright notice Copyright © Microsoft Corporation. All rights reserved..
calculatorapp.exe appears to have a visible user interface. This means it doesn't operate in some kind of invisible mode. Its operation is clearly shown to the user.
The digital certificate is missing from this program. The publisher did not sign it. This is probably bad.
This program does NOT have an uninstall command set up in registry.