211011020110111 has 8 divisors (see below), whose sum is σ = 227246635561680. Its totient is φ = 194775975875712.

The previous prime is 211011020110103. The next prime is 211011020110157. The reversal of 211011020110111 is 111011020110112.

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 211011020110111 - 2³ = 211011020110103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211011020110091 and 211011020110100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211011020110211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142036906 + ... + 143514823.

It is an arithmetic number, because the mean of its divisors is an integer number (28405829445210).

Almost surely, 2^{211011020110111} is an apocalyptic number.

211011020110111 is a deficient number, since it is larger than the sum of its proper divisors (16235615451569).

211011020110111 is a wasteful number, since it uses less digits than its factorization.

211011020110111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285608585.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 211011020110111 its reverse (111011020110112), we get a palindrome (322022040220223).

Subtracting from 211011020110111 its reverse (111011020110112), we obtain a palindrome (99999999999999).

The spelling of 211011020110111 in words is "two hundred eleven trillion, eleven billion, twenty million, one hundred ten thousand, one hundred eleven".