11101108920 has 64 divisors (see below), whose sum is σ = 36330906240. Its totient is φ = 2691177600.

The previous prime is 11101108913. The next prime is 11101108943. The reversal of 11101108920 is 2980110111.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4203646 + ... + 4206285.

It is an arithmetic number, because the mean of its divisors is an integer number (567670410).

Almost surely, 2^11101108920 is an apocalyptic number.

11101108920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11101108920 is an abundant number, since it is smaller than the sum of its proper divisors (25229797320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11101108920 is a wasteful number, since it uses less digits than its factorization.

11101108920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8409956 (or 8409952 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 24.

It can be divided in two parts, 11101 and 108920, that added together give a palindrome (120021).

The spelling of 11101108920 in words is "eleven billion, one hundred one million, one hundred eight thousand, nine hundred twenty".