$arFilter = Array("IBLOCK_ID"=>230, "PROPERTY_BILL_VALUE" => "5200014561");
$arSelect = Array("*");
$res = CIBlockElement::GetList(Array("SORT"=>"ASC"), $arFilter, false, array(), $arSelect);
while($ob = $res->GetNextElement()){
$arFields = $ob->GetFields();
echo "<pre>";
print_r($arFields);
echo "</pre>";
}