20110100000100 has 72 divisors (see below), whose sum is σ = 63474788374368. Its totient is φ = 4875175756800.

The previous prime is 20110100000057. The next prime is 20110100000131. The reversal of 20110100000100 is 100000101102.

It is a super-2 number, since 2×20110100000100² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3046981549 + ... + 3046988148.

Almost surely, 2^{20110100000100} is an apocalyptic number.

20110100000100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20110100000100 is an abundant number, since it is smaller than the sum of its proper divisors (43364688374268).

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

20110100000100 is a wasteful number, since it uses less digits than its factorization.

20110100000100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6093969725 (or 6093969718 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 20110100000100 its reverse (100000101102), we get a palindrome (20210100101202).

The spelling of 20110100000100 in words is "twenty trillion, one hundred ten billion, one hundred million, one hundred", and thus it is an aban number.