20001100011101 has 4 divisors (see below), whose sum is σ = 21819381830304. Its totient is φ = 18182818191900.

The previous prime is 20001100010977. The next prime is 20001100011133. The reversal of 20001100011101 is 10111000110002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20001100011101 - 2³⁴ = 19983920141917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001100011181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 909140909585 + ... + 909140909606.

It is an arithmetic number, because the mean of its divisors is an integer number (5454845457576).

Almost surely, 2^{20001100011101} is an apocalyptic number.

It is an amenable number.

20001100011101 is a deficient number, since it is larger than the sum of its proper divisors (1818281819203).

20001100011101 is a wasteful number, since it uses less digits than its factorization.

20001100011101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818281819202.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 20001100011101 its reverse (10111000110002), we get a palindrome (30112100121103).

The spelling of 20001100011101 in words is "twenty trillion, one billion, one hundred million, eleven thousand, one hundred one".