Allah isn't a name of God . AL=the, ELAH=god ie Allah means the god it is known for pagan as the Creator , the origin of all things
If you asked them, "Who created the heavens and earth and subjected the sun and the moon?" they would surely say, "Allah." Then how are they deluded?
[Quran 29 : 61 ] them = unbelievers= arabic idolaters. You=Muhammed
And to Allah belong the best names, so invoke Him by them. And leave [the company of] those who practice deviation concerning His names. They will be recompensed for what they have been doing.
[Quran 7 : 180 ]
Say, "Call upon Allah or call upon the Most Merciful. Whichever [name] you call - to Him belong the best names." And do not recite [too] loudly in your prayer or [too] quietly but seek between that an [intermediate] way.
[Quran 17 : 110 ]
He is Allah, other than whom there is no deity, Knower of the unseen and the witnessed. He is the Entirely Merciful, the Especially Merciful. He is Allah, other than whom there is no deity, the Sovereign, the Pure, the Perfection, the Bestower of Faith, the Overseer, the Exalted in Might, the Compeller, the Superior. Exalted is Allah above whatever they associate with Him . He is Allah, the Creator, the Inventor, the Fashioner; to Him belong the best names. Whatever is in the heavens and earth is exalting Him. And He is the Exalted in Might, the Wise.
[Quran 59 :22- 24 ]