Pekak: Yes, that’s right.
Later on in Sefer Bamidbar, after he sinned and caused the deaths of thousands of Jews, he is identified as Zimri.
At the beginning of the sefer, though, he is identified as the Nassi of Shevet Shimon. At this point he was still a righteous person, and he is therefore called “Shlumiel”, which means, “at peace with Hashem”.
