ALGIERS — Algeria’s 81-year-old president, Abdelaziz Bouteflika, who has been infirm since a stroke in 2013, is planning to run in April’s presidential elections, the state news agency, APS, reported on Sunday.

A record number of people are planning to run for president this year, amid growing uncertainty about whether Mr. Bouteflika is fit for another term after almost two decades in charge of the gas-rich North African nation.

In the two weeks since the electoral process began, 186 people have requested the documents needed to declare their candidacy. That is more than double the number of potential candidates at this stage in the last presidential campaign, in 2014.

Most are unlikely to get the signatures required to formally get on the April 18 ballot. But the range of candidates suggests wide frustration with the status quo.