211320203272 has 8 divisors (see below), whose sum is σ = 396225381150. Its totient is φ = 105660101632.

The previous prime is 211320203209. The next prime is 211320203273. The reversal of 211320203272 is 272302023112.

It can be written as a sum of positive squares in only one way, i.e., 171258579556 + 40061623716 = 413834^2 + 200154^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (211320203273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13207512697 + ... + 13207512712.

Almost surely, 2^211320203272 is an apocalyptic number.

It is an amenable number.

211320203272 is a deficient number, since it is larger than the sum of its proper divisors (184905177878).

211320203272 is a wasteful number, since it uses less digits than its factorization.

211320203272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26415025415 (or 26415025411 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

Adding to 211320203272 its reverse (272302023112), we get a palindrome (483622226384).

The spelling of 211320203272 in words is "two hundred eleven billion, three hundred twenty million, two hundred three thousand, two hundred seventy-two".