20100110100 has 144 divisors (see below), whose sum is σ = 67110371328. Its totient is φ = 4549656960.

The previous prime is 20100110077. The next prime is 20100110141. The reversal of 20100110100 is 101100102.

It is a super-3 number, since 3×20100110100³ (a number of 32 digits) contains 333 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 a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 169837 + ... + 262763.

Almost surely, 2^20100110100 is an apocalyptic number.

20100110100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20100110100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33555185664).

20100110100 is an abundant number, since it is smaller than the sum of its proper divisors (47010261228).

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

20100110100 is a wasteful number, since it uses less digits than its factorization.

20100110100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93054 (or 93047 counting only the distinct ones).

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

Adding to 20100110100 its reverse (101100102), we get a palindrome (20201210202).

The spelling of 20100110100 in words is "twenty billion, one hundred million, one hundred ten thousand, one hundred".