11101020011 has 2 divisors, whose sum is σ = 11101020012. Its totient is φ = 11101020010.

The previous prime is 11101019987. The next prime is 11101020013. The reversal of 11101020011 is 11002010111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11101020011 is a prime.

Together with 11101020013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11101020013) 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 as a sum of consecutive naturals, namely, 5550510005 + 5550510006.

It is an arithmetic number, because the mean of its divisors is an integer number (5550510006).

Almost surely, 2^11101020011 is an apocalyptic number.

11101020011 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101020011 is an equidigital number, since it uses as much as digits as its factorization.

11101020011 is an odious number, because the sum of its binary digits is odd.

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

Adding to 11101020011 its reverse (11002010111), we get a palindrome (22103030122).

The spelling of 11101020011 in words is "eleven billion, one hundred one million, twenty thousand, eleven".