get post order by meta value int
$defaults = array( 'numberposts' => -1, 'post_type' => 'agent_listing', 'meta_key' => 'oepl_order_no', 'orderby' => 'meta_value_num', 'order' => 'ASC', 'suppress_filters' => false ); 'orderby' => 'meta_value_num', // for int field 'orderby' => 'meta_value', // text field