20201010202111 has 8 divisors (see below), whose sum is σ = 21285986096880. Its totient is φ = 19118210790528.

The previous prime is 20201010202063. The next prime is 20201010202129. The reversal of 20201010202111 is 11120201010202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20201010202111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20201010202091 and 20201010202100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201010232111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 544101736 + ... + 544138861.

It is an arithmetic number, because the mean of its divisors is an integer number (2660748262110).

Almost surely, 2^{20201010202111} is an apocalyptic number.

20201010202111 is a deficient number, since it is larger than the sum of its proper divisors (1084975894769).

20201010202111 is a wasteful number, since it uses less digits than its factorization.

20201010202111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088241593.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20201010202111 its reverse (11120201010202), we get a palindrome (31321211212313).

It can be divided in two parts, 20201010202 and 111, that multiplied together give a palindrome (2242312132422).

The spelling of 20201010202111 in words is "twenty trillion, two hundred one billion, ten million, two hundred two thousand, one hundred eleven".