utxos for pubkey have address like this one:

http://test.bitcore.io/block/00000000b7fb6107ba38ad27ea05e5c87fead7f3290213dd70eb291ef37012d7

  $bitcoind gettxout 3a0fbd1e5104cf26faffd82f6439a9fc48b14b98b9a9279334c209aeff33102a 0
  {
    "bestblock" : "00000000b7fb6107ba38ad27ea05e5c87fead7f3290213dd70eb291ef37012d7",
    "confirmations" : 1,
    "value" : 50.00110000,
    "scriptPubKey" : {
        "asm" : "03ce5b3b180ec5e155f41917a4e5c507a19fe2cb0f4ebb9d6ee839aaf2260edd1d OP_CHECKSIG",
        "hex" : "2103ce5b3b180ec5e155f41917a4e5c507a19fe2cb0f4ebb9d6ee839aaf2260edd1dac",
        "reqSigs" : 1,
        "type" : "pubkey",
        "addresses" : [
            "mv3uSMmJejcvWM5ebhnXuu4hfomDZ4fNKq"
        ]
    },
    "version" : 1,
    "coinbase" : true
   }
not sure about utxos for regular multisig, I guess there have many addresses. That is not supported yet.