211111102130223 has 32 divisors (see below), whose sum is σ = 293203988775936. Its totient is φ = 134994889104768.

The previous prime is 211111102130207. The next prime is 211111102130261. The reversal of 211111102130223 is 322031201111112.

It is not a de Polignac number, because 211111102130223 - 2⁴ = 211111102130207 is a prime.

It is a super-3 number, since 3×211111102130223³ (a number of 44 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211111102130223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211111102130623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20480040 + ... + 29011277.

It is an arithmetic number, because the mean of its divisors is an integer number (9162624649248).

Almost surely, 2^{211111102130223} is an apocalyptic number.

211111102130223 is a deficient number, since it is larger than the sum of its proper divisors (82092886645713).

211111102130223 is a wasteful number, since it uses less digits than its factorization.

211111102130223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49491903.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 211111102130223 its reverse (322031201111112), we get a palindrome (533142303241335).

The spelling of 211111102130223 in words is "two hundred eleven trillion, one hundred eleven billion, one hundred two million, one hundred thirty thousand, two hundred twenty-three".