211045311 has 16 divisors (see below), whose sum is σ = 318561120. Its totient is φ = 138041280.

The previous prime is 211045297. The next prime is 211045321. The reversal of 211045311 is 113540112.

211045311 is a `hidden beast` number, since 211 + 0 + 453 + 1 + 1 = 666.

It is not a de Polignac number, because 211045311 - 2¹⁰ = 211044287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211045321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72310 + ... + 75171.

It is an arithmetic number, because the mean of its divisors is an integer number (19910070).

Almost surely, 2^211045311 is an apocalyptic number.

211045311 is a deficient number, since it is larger than the sum of its proper divisors (107515809).

211045311 is a wasteful number, since it uses less digits than its factorization.

211045311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147543 (or 147537 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 211045311 is about 14527.3986315513. The cubic root of 211045311 is about 595.3767930934.

Adding to 211045311 its reverse (113540112), we get a palindrome (324585423).

The spelling of 211045311 in words is "two hundred eleven million, forty-five thousand, three hundred eleven".