11020111011 has 48 divisors (see below), whose sum is σ = 19602448320. Its totient is φ = 5809501440.

The previous prime is 11020110967. The next prime is 11020111013. The reversal of 11020111011 is 11011102011.

It is not a de Polignac number, because 11020111011 - 2¹¹ = 11020108963 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 11020110984 and 11020111002.

It is not an unprimeable number, because it can be changed into a prime (11020111013) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2242425 + ... + 2247333.

It is an arithmetic number, because the mean of its divisors is an integer number (408384340).

Almost surely, 2^11020111011 is an apocalyptic number.

11020111011 is a deficient number, since it is larger than the sum of its proper divisors (8582337309).

11020111011 is a wasteful number, since it uses less digits than its factorization.

11020111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7676 (or 7673 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 11020111011 its reverse (11011102011), we get a palindrome (22031213022).

The spelling of 11020111011 in words is "eleven billion, twenty million, one hundred eleven thousand, eleven".