The Republic of Indonesia (IPA: /ɪn.doʊ.ni.ʒə/) , is a nation in Southeast Asia. Comprising 17,508 islands, it is the world's largest archipelagic state. With a population of over 234 million people, it is the world's fourth most populous country and the most populous Muslim-majority nation, although officially it is not an Islamic state. Indonesia is a republic, with an elected parliament and president.