11118206863 has 4 divisors (see below), whose sum is σ = 11184783120. Its totient is φ = 11051630608.

The previous prime is 11118206861. The next prime is 11118206881. The reversal of 11118206863 is 36860281111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36860281111 = 227 ⋅162380093.

It is a cyclic number.

It is not a de Polignac number, because 11118206863 - 2¹ = 11118206861 is a prime.

It is a super-2 number, since 2×11118206863² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11118206861) 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, 33287878 + ... + 33288211.

It is an arithmetic number, because the mean of its divisors is an integer number (2796195780).

Almost surely, 2^11118206863 is an apocalyptic number.

11118206863 is a deficient number, since it is larger than the sum of its proper divisors (66576257).

11118206863 is an equidigital number, since it uses as much as digits as its factorization.

11118206863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66576256.

The product of its (nonzero) digits is 13824, while the sum is 37.

Adding to 11118206863 its reverse (36860281111), we get a palindrome (47978487974).

The spelling of 11118206863 in words is "eleven billion, one hundred eighteen million, two hundred six thousand, eight hundred sixty-three".