Boyd’s Bible Dictionary:
(famous). Son of Reuben (Ex. 6:14).
Concise Bible Dictionary:
Second son of Reuben, and his descendants (Ex. 6:14; Num. 26:5, 8; 1 Chron. 5:3). He is called PHALLU in Genesis 46:9.
Jackson’s Dictionary of Scripture Proper Names:
wonderful