Hello, it sounds like either the Apache binaries are incompatible with your system, or that they depend on libraries which aren't installed. Here's some info on the library that is being called, but which doesn't appear to be available on your system:
dld.sl(5)
Can you verify your HP-UX version is 11.2x and that you ran the root.sh script post-install? If both of these are in order, then I'd recommend opening an SR with Oracle, as they may have to provide you with different Apache binaries.
--Chris