211000111011 has 48 divisors (see below), whose sum is σ = 320872799520. Its totient is φ = 133433879040.

The previous prime is 211000111009. The next prime is 211000111027. The reversal of 211000111011 is 110111000112.

It is not a de Polignac number, because 211000111011 - 2¹ = 211000111009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 211000110984 and 211000111002.

It is not an unprimeable number, because it can be changed into a prime (211000111051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23328456 + ... + 23337498.

It is an arithmetic number, because the mean of its divisors is an integer number (6684849990).

Almost surely, 2^211000111011 is an apocalyptic number.

211000111011 is a deficient number, since it is larger than the sum of its proper divisors (109872688509).

211000111011 is a wasteful number, since it uses less digits than its factorization.

211000111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10836 (or 10833 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 211000111011 its reverse (110111000112), we get a palindrome (321111111123).

The spelling of 211000111011 in words is "two hundred eleven billion, one hundred eleven thousand, eleven".