20100110020100 has 36 divisors (see below), whose sum is σ = 47582442268368. Its totient is φ = 7309130916000.

The previous prime is 20100110020073. The next prime is 20100110020171. The reversal of 20100110020100 is 102001100102.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9136412546 + ... + 9136414745.

Almost surely, 2^{20100110020100} is an apocalyptic number.

20100110020100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20100110020100 is an abundant number, since it is smaller than the sum of its proper divisors (27482332248268).

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

20100110020100 is a wasteful number, since it uses less digits than its factorization.

20100110020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18272827316 (or 18272827309 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 20100110020100 its reverse (102001100102), we get a palindrome (20202111120202).

The spelling of 20100110020100 in words is "twenty trillion, one hundred billion, one hundred ten million, twenty thousand, one hundred".