11108402811 has 48 divisors (see below), whose sum is σ = 18098776800. Its totient is φ = 6506127360.

The previous prime is 11108402791. The next prime is 11108402821. The reversal of 11108402811 is 11820480111.

It is not a de Polignac number, because 11108402811 - 2⁵ = 11108402779 is a prime.

It is a super-2 number, since 2×11108402811² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11108402821) 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, 535611 + ... + 555963.

It is an arithmetic number, because the mean of its divisors is an integer number (377057850).

Almost surely, 2^11108402811 is an apocalyptic number.

11108402811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11108402811 is a deficient number, since it is larger than the sum of its proper divisors (6990373989).

11108402811 is a wasteful number, since it uses less digits than its factorization.

11108402811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20556 (or 20553 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 27.

Adding to 11108402811 its reverse (11820480111), we get a palindrome (22928882922).

The spelling of 11108402811 in words is "eleven billion, one hundred eight million, four hundred two thousand, eight hundred eleven".