Complex sentence: Its population (as of 2003) is 241,113, (which makes it the largest non-capital city, and the 20th largest of the country) and its inhabitants are called "Palmireños" or "Palmiranos" in "Valluno" slang.
Split into simpler sentences: Its population (as of 2003) is 241,113, (which makes it the largest non-capital city, and the 20th largest of the country). Its inhabitants are called "Palmireños" or "Palmiranos" in "Valluno" slang.