11100320020 has 48 divisors (see below), whose sum is σ = 23696386560. Its totient is φ = 4367091456.

The previous prime is 11100319913. The next prime is 11100320027. The reversal of 11100320020 is 2002300111.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 11100319979 and 11100320006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100320027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402184 + ... + 428896.

It is an arithmetic number, because the mean of its divisors is an integer number (493674720).

Almost surely, 2^11100320020 is an apocalyptic number.

11100320020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11100320020 is an abundant number, since it is smaller than the sum of its proper divisors (12596066540).

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

11100320020 is a wasteful number, since it uses less digits than its factorization.

11100320020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27064 (or 27062 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 11100320020 its reverse (2002300111), we get a palindrome (13102620131).

The spelling of 11100320020 in words is "eleven billion, one hundred million, three hundred twenty thousand, twenty".