201111011011 has 2 divisors, whose sum is σ = 201111011012. Its totient is φ = 201111011010.

The previous prime is 201111010993. The next prime is 201111011033. The reversal of 201111011011 is 110110111102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201111011011 - 2¹¹ = 201111008963 is a prime.

It is not a weakly prime, because it can be changed into another prime (201111011071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100555505505 + 100555505506.

It is an arithmetic number, because the mean of its divisors is an integer number (100555505506).

Almost surely, 2^201111011011 is an apocalyptic number.

201111011011 is a deficient number, since it is larger than the sum of its proper divisors (1).

201111011011 is an equidigital number, since it uses as much as digits as its factorization.

201111011011 is an evil number, because the sum of its binary digits is even.

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

Adding to 201111011011 its reverse (110110111102), we get a palindrome (311221122113).

The spelling of 201111011011 in words is "two hundred one billion, one hundred eleven million, eleven thousand, eleven".