211242203111 has 8 divisors (see below), whose sum is σ = 212449085184. Its totient is φ = 210036372480.

The previous prime is 211242203083. The next prime is 211242203119. The reversal of 211242203111 is 111302242112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211242203111 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 (211242203119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141875 + ... + 665291.

It is an arithmetic number, because the mean of its divisors is an integer number (26556135648).

Almost surely, 2^211242203111 is an apocalyptic number.

211242203111 is a deficient number, since it is larger than the sum of its proper divisors (1206882073).

211242203111 is a wasteful number, since it uses less digits than its factorization.

211242203111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525721.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 211242203111 its reverse (111302242112), we get a palindrome (322544445223).

The spelling of 211242203111 in words is "two hundred eleven billion, two hundred forty-two million, two hundred three thousand, one hundred eleven".