11100000020 has 24 divisors (see below), whose sum is σ = 23590846944. Its totient is φ = 4386505376.

The previous prime is 11100000019. The next prime is 11100000053. The reversal of 11100000020 is 2000000111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (5).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3341714 + ... + 3345033.

It is an arithmetic number, because the mean of its divisors is an integer number (982951956).

Almost surely, 2^11100000020 is an apocalyptic number.

11100000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11100000020 is an abundant number, since it is smaller than the sum of its proper divisors (12490846924).

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

11100000020 is a wasteful number, since it uses less digits than its factorization.

11100000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6686839 (or 6686837 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 5.

Adding to 11100000020 its reverse (2000000111), we get a palindrome (13100000131).

Subtracting from 11100000020 its reverse (2000000111), we obtain a palindrome (9099999909).

The spelling of 11100000020 in words is "eleven billion, one hundred million, twenty", and thus it is an aban number.