20002100000011 has 4 divisors (see below), whose sum is σ = 20002136856552. Its totient is φ = 20002063143472.

The previous prime is 20002099999991. The next prime is 20002100000017. The reversal of 20002100000011 is 11000000120002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20002100000011 - 2⁵ = 20002099999979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20002100000017) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 17601865 + ... + 18703738.

It is an arithmetic number, because the mean of its divisors is an integer number (5000534214138).

Almost surely, 2^{20002100000011} is an apocalyptic number.

20002100000011 is a deficient number, since it is larger than the sum of its proper divisors (36856541).

20002100000011 is an equidigital number, since it uses as much as digits as its factorization.

20002100000011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36856540.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 20002100000011 its reverse (11000000120002), we get a palindrome (31002100120013).

The spelling of 20002100000011 in words is "twenty trillion, two billion, one hundred million, eleven", and thus it is an aban number.