20201013231111 has 12 divisors (see below), whose sum is σ = 29182136518080. Its totient is φ = 13466005915200.

The previous prime is 20201013231083. The next prime is 20201013231143. The reversal of 20201013231111 is 11113231010202.

20201013231111 is a `hidden beast` number, since 20 + 201 + 0 + 132 + 311 + 1 + 1 = 666.

It is not a de Polignac number, because 20201013231111 - 2²¹ = 20201011133959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201013231181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111257490 + ... + 111438911.

It is an arithmetic number, because the mean of its divisors is an integer number (2431844709840).

Almost surely, 2^{20201013231111} is an apocalyptic number.

20201013231111 is a deficient number, since it is larger than the sum of its proper divisors (8981123286969).

20201013231111 is a wasteful number, since it uses less digits than its factorization.

20201013231111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222706486 (or 222706483 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 20201013231111 its reverse (11113231010202), we get a palindrome (31314244241313).

The spelling of 20201013231111 in words is "twenty trillion, two hundred one billion, thirteen million, two hundred thirty-one thousand, one hundred eleven".