2020321031 has 4 divisors (see below), whose sum is σ = 2020707312. Its totient is φ = 2019934752.

The previous prime is 2020321019. The next prime is 2020321049. The reversal of 2020321031 is 1301230202.

It is a happy number.

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 2020321031 - 2¹⁰ = 2020320007 is a prime.

It is a super-2 number, since 2×2020321031² = 8163394136601805922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2020320997 and 2020321015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020321631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185186 + ... + 195791.

It is an arithmetic number, because the mean of its divisors is an integer number (505176828).

Almost surely, 2^2020321031 is an apocalyptic number.

2020321031 is a deficient number, since it is larger than the sum of its proper divisors (386281).

2020321031 is an equidigital number, since it uses as much as digits as its factorization.

2020321031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386280.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2020321031 is about 44947.9813896019. The cubic root of 2020321031 is about 1264.1738278987.

Adding to 2020321031 its reverse (1301230202), we get a palindrome (3321551233).

The spelling of 2020321031 in words is "two billion, twenty million, three hundred twenty-one thousand, thirty-one".