Junji Ito's 'Uzumaki' is so fundamentally visual that I'd question trying to experience it as anything but the physical or digital graphic novel. The horror lives in those meticulous, spiraling ink drawings; an audiobook just can't convey that creeping dread from a two-page spread of a town twisting into itself. That said, you can definitely get digital copies. I know Viz Media has an official ebook edition for purchase on platforms like Amazon Kindle, Google Play Books, and ComiXology.
For an audiobook, I don't think a traditional one exists, but there are fully-voiced radio drama adaptations out of Japan. Finding those with English subtitles is a whole other project, though. Honestly, if you want the core experience on a device, go for the digital comic. Downloading it legitimately means you're getting the full, uncut artwork, which is the entire point. Trying to listen to a description of the snail people or the hair chapter would just feel... incomplete.
You'll sometimes see unofficial text summaries or 'narration' videos on places like YouTube, but they strip out what makes 'Uzumaki' special.