What is "alalngar"

Alalngar (also written as: Alalĝar, Alalgar, or Alaljar) was the second ensí of Eridu, according to the Sumerian King List. He was also the second king of Sumer. Also according to the Sumerian King List: Alalngar was preceded by Alulim. Additionally, Alalngar was succeeded by En-men-lu-ana of Bad-tibira. Alalngar was said to have reigned for thirty-six-thousand years (if not legenedary, he may have ruled c. 2900 BCE.)