211101011011 has 8 divisors (see below), whose sum is σ = 230676480000. Its totient is φ = 191589620040.

The previous prime is 211101010963. The next prime is 211101011029. The reversal of 211101011011 is 110110101112.

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 211101011011 - 2²¹ = 211098913859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211101011411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16012611 + ... + 16025788.

It is an arithmetic number, because the mean of its divisors is an integer number (28834560000).

Almost surely, 2^211101011011 is an apocalyptic number.

211101011011 is a deficient number, since it is larger than the sum of its proper divisors (19575468989).

211101011011 is a wasteful number, since it uses less digits than its factorization.

211101011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32039009.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 211101011011 its reverse (110110101112), we get a palindrome (321211112123).

It can be divided in two parts, 21110101 and 1011, that added together give a palindrome (21111112).

The spelling of 211101011011 in words is "two hundred eleven billion, one hundred one million, eleven thousand, eleven".