11010020111 has 2 divisors, whose sum is σ = 11010020112. Its totient is φ = 11010020110.

The previous prime is 11010020071. The next prime is 11010020123. The reversal of 11010020111 is 11102001011.

It is a happy number.

11010020111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11010020111 - 2¹⁴ = 11010003727 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11010020141) 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 as a sum of consecutive naturals, namely, 5505010055 + 5505010056.

It is an arithmetic number, because the mean of its divisors is an integer number (5505010056).

Almost surely, 2^11010020111 is an apocalyptic number.

11010020111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11010020111 is an equidigital number, since it uses as much as digits as its factorization.

11010020111 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 11010020111 its reverse (11102001011), we get a palindrome (22112021122).

The spelling of 11010020111 in words is "eleven billion, ten million, twenty thousand, one hundred eleven".