20201020012011 has 16 divisors (see below), whose sum is σ = 27596864655360. Its totient is φ = 13136385487680.

The previous prime is 20201020011979. The next prime is 20201020012037. The reversal of 20201020012011 is 11021002010202.

It is not a de Polignac number, because 20201020012011 - 2⁵ = 20201020011979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20201020012081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14906275 + ... + 16204908.

It is an arithmetic number, because the mean of its divisors is an integer number (1724804040960).

Almost surely, 2^{20201020012011} is an apocalyptic number.

20201020012011 is a deficient number, since it is larger than the sum of its proper divisors (7395844643349).

20201020012011 is a wasteful number, since it uses less digits than its factorization.

20201020012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31116506.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20201020012011 its reverse (11021002010202), we get a palindrome (31222022022213).

The spelling of 20201020012011 in words is "twenty trillion, two hundred one billion, twenty million, twelve thousand, eleven".