It is both famous and infamous. Despite appearances, these two words are not precise antonyms, as infamous does not mean 'not famous', but 'famous for an unworthy reason'.

Without wishing to appear either vain or pedantic*, I would observe that I consider myself sufficiently linguistically well-versed as to render it inadvisable to challenge me on matters of semantics.

≈M≈

*or anyhow, not much, as the great Damon Runyon would observe.