[R] INET_NTOA equivalent?

[Dr Eberhard Lisse]

In MySQL

	SELECT INET_ATON('127.0.0.1')

returns the integer 2130706433

Is there a function in R to reverse that, ie so that something like

	ip <- inet_ntoa(2130706433)

would put  '127.0.0.1' into ip?

greetings, el