211244044311 has 16 divisors (see below), whose sum is σ = 314575671520. Its totient is φ = 140099673600.

The previous prime is 211244044307. The next prime is 211244044357. The reversal of 211244044311 is 113440442112.

211244044311 is a `hidden beast` number, since 211 + 2 + 4 + 4 + 0 + 443 + 1 + 1 = 666.

It is not a de Polignac number, because 211244044311 - 2² = 211244044307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211244044511) 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, 20263840 + ... + 20274261.

It is an arithmetic number, because the mean of its divisors is an integer number (19660979470).

Almost surely, 2^211244044311 is an apocalyptic number.

211244044311 is a deficient number, since it is larger than the sum of its proper divisors (103331627209).

211244044311 is a wasteful number, since it uses less digits than its factorization.

211244044311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40538303 (or 40538297 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 211244044311 its reverse (113440442112), we get a palindrome (324684486423).

The spelling of 211244044311 in words is "two hundred eleven billion, two hundred forty-four million, forty-four thousand, three hundred eleven".