is_post_publicly_viewable( int|WP_Post|null $post = null )

Source

File: wp-includes/post.php

function is_post_publicly_viewable( $post = null ) {
	$post = get_post( $post );

	if ( ! $post ) {
		return false;
	}

	$post_type   = get_post_type( $post );
	$post_status = get_post_status( $post );

	return is_post_type_viewable( $post_type ) && is_post_status_viewable( $post_status );
}