Since version 11.0.23 was a "planned update" and not a base version, you typically cannot find a single "all-in-one" official offline installer for this exact sub-version.
Modern Adobe Readers often nag you to sign in with an Adobe ID. Reader XI had zero cloud dependencies. download adobe reader xi 11.0.23 offline installer
Released in 2013, Adobe Reader XI 11.0.23 is a stable and feature-rich version of the software that has stood the test of time. It offers a range of tools and features, including: Since version 11
That evening, as Marcus walked home, the city lights flickering like a sequence of tiny, patient programs, he thought about old software and the people who keep it alive—archivists, shopkeepers, the ones who save a little disc in a back room. The world moves fast, but sometimes you need something that remembers how things were built. Released in 2013, Adobe Reader XI 11
If the official FTP is unreachable or runs slowly, you can find the offline installer on highly reputable software archiving platforms. Be sure to decline any optional bundled software during download: OldVersion.com FileHippo MajorGeeks How to Install Adobe Reader XI Using the Offline Installer
