211311020311 has 8 divisors (see below), whose sum is σ = 211492367280. Its totient is φ = 211129739328.

The previous prime is 211311020279. The next prime is 211311020339. The reversal of 211311020311 is 113020113112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211311020311 - 2⁵ = 211311020279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211311020611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7979785 + ... + 8006221.

It is an arithmetic number, because the mean of its divisors is an integer number (26436545910).

Almost surely, 2^211311020311 is an apocalyptic number.

211311020311 is a deficient number, since it is larger than the sum of its proper divisors (181346969).

211311020311 is a wasteful number, since it uses less digits than its factorization.

211311020311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32993.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 211311020311 its reverse (113020113112), we get a palindrome (324331133423).

The spelling of 211311020311 in words is "two hundred eleven billion, three hundred eleven million, twenty thousand, three hundred eleven".