11020112011 has 4 divisors (see below), whose sum is σ = 11668353912. Its totient is φ = 10371870112.

The previous prime is 11020111997. The next prime is 11020112017. The reversal of 11020112011 is 11021102011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11021102011 = 233 ⋅47300867.

It is a cyclic number.

It is not a de Polignac number, because 11020112011 - 2⁹ = 11020111499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11020112017) 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, 324120925 + ... + 324120958.

It is an arithmetic number, because the mean of its divisors is an integer number (2917088478).

Almost surely, 2^11020112011 is an apocalyptic number.

11020112011 is a deficient number, since it is larger than the sum of its proper divisors (648241901).

11020112011 is an equidigital number, since it uses as much as digits as its factorization.

11020112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648241900.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11020112011 its reverse (11021102011), we get a palindrome (22041214022).

The spelling of 11020112011 in words is "eleven billion, twenty million, one hundred twelve thousand, eleven".