20200011202111 has 4 divisors (see below), whose sum is σ = 21753858217672. Its totient is φ = 18646164186552.

The previous prime is 20200011202097. The next prime is 20200011202123. The reversal of 20200011202111 is 11120211000202.

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 20200011202111 - 2¹⁷ = 20200011071039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 1553847015547 = 20200011202111 / (2 + 0 + 2 + 0 + 0 + 0 + 1 + 1 + 2 + 0 + 2 + 1 + 1 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20200011202091 and 20200011202100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200011202171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 776923507761 + ... + 776923507786.

It is an arithmetic number, because the mean of its divisors is an integer number (5438464554418).

Almost surely, 2^{20200011202111} is an apocalyptic number.

20200011202111 is a deficient number, since it is larger than the sum of its proper divisors (1553847015561).

20200011202111 is a wasteful number, since it uses less digits than its factorization.

20200011202111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553847015560.

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

Adding to 20200011202111 its reverse (11120211000202), we get a palindrome (31320222202313).

The spelling of 20200011202111 in words is "twenty trillion, two hundred billion, eleven million, two hundred two thousand, one hundred eleven".