British PM May extended the invitation to him last week
A petition that calls for Donald Trump's state visit to Britain to be downgraded will be debated in the House of Commons by MPs.
More than 1.7 million people have now added their signatures to the petition, which says such a visit would be an "embarrassment" to Queen Elizabeth II.
It is set to be debated on February 20th.
The petition states: "Donald Trump should be allowed to enter the UK in his capacity as head of the US Government, but he should not be invited to make an official State Visit because it would cause embarrassment to Her Majesty the Queen.
"Donald Trump's well documented misogyny and vulgarity disqualifies him from being received by Her Majesty the Queen or the Prince of Wales.
"Therefore during the term of his presidency Donald Trump should not be invited to the United Kingdom for an official State Visit".
British Prime Minister Theresa May extended the invitation to Mr Trump after she met with him in Washington DC last week.
Under UK petition rules, the government responds to all petitions that get more than 10,000 signatures.
The debate will also take in a rival petition, containing more than 100,000 signatures, which backs the new US leader's state visit.
The other petition says: "Donald Trump should be invited to make an official State Visit because he is the leader of a free world and UK is a country that supports free speech and does not believe that people that appose our point of view should be gagged".
Signatures soared in number over the weekend after Mr Trump announced a travel ban against seven mainly-Muslim countries.
Additional reporting: IRN