2020321111 has 4 divisors (see below), whose sum is σ = 2029221432. Its totient is φ = 2011420792.

The previous prime is 2020321087. The next prime is 2020321133. The reversal of 2020321111 is 1111230202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1111230202 = 2 ⋅555615101.

It is a cyclic number.

It is not a de Polignac number, because 2020321111 - 2²¹ = 2018223959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2020321091 and 2020321100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020321711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4449820 + ... + 4450273.

It is an arithmetic number, because the mean of its divisors is an integer number (507305358).

Almost surely, 2^2020321111 is an apocalyptic number.

2020321111 is a deficient number, since it is larger than the sum of its proper divisors (8900321).

2020321111 is an equidigital number, since it uses as much as digits as its factorization.

2020321111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8900320.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2020321111 is about 44947.9822795195. The cubic root of 2020321111 is about 1264.1738445848.

Adding to 2020321111 its reverse (1111230202), we get a palindrome (3131551313).

Subtracting from 2020321111 its reverse (1111230202), we obtain a palindrome (909090909).

It can be divided in two parts, 20203 and 21111, that added together give a palindrome (41314).

The spelling of 2020321111 in words is "two billion, twenty million, three hundred twenty-one thousand, one hundred eleven".