211100001011 has 8 divisors (see below), whose sum is σ = 226403179920. Its totient is φ = 196216087392.

The previous prime is 211100000983. The next prime is 211100001071. The reversal of 211100001011 is 110100001112.

It is a happy number.

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-211100001011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211100001011.

It is not an unprimeable number, because it can be changed into a prime (211100001071) 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, 104815280 + ... + 104817293.

It is an arithmetic number, because the mean of its divisors is an integer number (28300397490).

Almost surely, 2^211100001011 is an apocalyptic number.

211100001011 is a deficient number, since it is larger than the sum of its proper divisors (15303178909).

211100001011 is a wasteful number, since it uses less digits than its factorization.

211100001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209632645.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 211100001011 its reverse (110100001112), we get a palindrome (321200002123).

The spelling of 211100001011 in words is "two hundred eleven billion, one hundred million, one thousand, eleven".