211020100111 has 8 divisors (see below), whose sum is σ = 214313783040. Its totient is φ = 207730656408.

The previous prime is 211020100097. The next prime is 211020100141. The reversal of 211020100111 is 111001020112.

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 211020100111 - 2⁹ = 211020099599 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 (211020100141) 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 7 ways as a sum of consecutive naturals, for example, 959401 + ... + 1158658.

It is an arithmetic number, because the mean of its divisors is an integer number (26789222880).

Almost surely, 2^211020100111 is an apocalyptic number.

211020100111 is a deficient number, since it is larger than the sum of its proper divisors (3293682929).

211020100111 is a wasteful number, since it uses less digits than its factorization.

211020100111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2119613.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 211020100111 its reverse (111001020112), we get a palindrome (322021120223).

The spelling of 211020100111 in words is "two hundred eleven billion, twenty million, one hundred thousand, one hundred eleven".