11011050611111 has 4 divisors (see below), whose sum is σ = 11021033432352. Its totient is φ = 11001067789872.

The previous prime is 11011050611083. The next prime is 11011050611147. The reversal of 11011050611111 is 11111605011011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11011050611111 - 2¹⁸ = 11011050348967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011050611311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4991408966 + ... + 4991411171.

It is an arithmetic number, because the mean of its divisors is an integer number (2755258358088).

Almost surely, 2^{11011050611111} is an apocalyptic number.

11011050611111 is a deficient number, since it is larger than the sum of its proper divisors (9982821241).

11011050611111 is an equidigital number, since it uses as much as digits as its factorization.

11011050611111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9982821240.

The product of its (nonzero) digits is 30, while the sum is 20.

Adding to 11011050611111 its reverse (11111605011011), we get a palindrome (22122655622122).

The spelling of 11011050611111 in words is "eleven trillion, eleven billion, fifty million, six hundred eleven thousand, one hundred eleven".