211302012111 has 4 divisors (see below), whose sum is σ = 281736016152. Its totient is φ = 140868008072.

The previous prime is 211302012073. The next prime is 211302012199. The reversal of 211302012111 is 111210203112.

211302012111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211302012111 - 2²⁹ = 210765141199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211302012211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35217002016 + ... + 35217002021.

It is an arithmetic number, because the mean of its divisors is an integer number (70434004038).

Almost surely, 2^211302012111 is an apocalyptic number.

211302012111 is a deficient number, since it is larger than the sum of its proper divisors (70434004041).

211302012111 is an equidigital number, since it uses as much as digits as its factorization.

211302012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70434004040.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 211302012111 its reverse (111210203112), we get a palindrome (322512215223).

The spelling of 211302012111 in words is "two hundred eleven billion, three hundred two million, twelve thousand, one hundred eleven".