11020171711 has 4 divisors (see below), whose sum is σ = 11129282424. Its totient is φ = 10911061000.

The previous prime is 11020171697. The next prime is 11020171717. The reversal of 11020171711 is 11717102011.

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 11020171711 - 2⁷ = 11020171583 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020171717) 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, 54555205 + ... + 54555406.

It is an arithmetic number, because the mean of its divisors is an integer number (2782320606).

Almost surely, 2^11020171711 is an apocalyptic number.

11020171711 is a deficient number, since it is larger than the sum of its proper divisors (109110713).

11020171711 is a wasteful number, since it uses less digits than its factorization.

11020171711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109110712.

The product of its (nonzero) digits is 98, while the sum is 22.

Adding to 11020171711 its reverse (11717102011), we get a palindrome (22737273722).

The spelling of 11020171711 in words is "eleven billion, twenty million, one hundred seventy-one thousand, seven hundred eleven".