20201020100011 has 16 divisors (see below), whose sum is σ = 20264478393600. Its totient is φ = 20137668018208.

The previous prime is 20201020099991. The next prime is 20201020100021. The reversal of 20201020100011 is 11000102010202.

It is a cyclic number.

It is not a de Polignac number, because 20201020100011 - 2¹¹ = 20201020097963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20201020100021) 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 15 ways as a sum of consecutive naturals, for example, 2979937620 + ... + 2979944398.

It is an arithmetic number, because the mean of its divisors is an integer number (1266529899600).

Almost surely, 2^{20201020100011} is an apocalyptic number.

20201020100011 is a deficient number, since it is larger than the sum of its proper divisors (63458293589).

20201020100011 is a wasteful number, since it uses less digits than its factorization.

20201020100011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13298.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20201020100011 its reverse (11000102010202), we get a palindrome (31201122110213).

The spelling of 20201020100011 in words is "twenty trillion, two hundred one billion, twenty million, one hundred thousand, eleven".