2020551321 has 16 divisors (see below), whose sum is σ = 2730792960. Its totient is φ = 1328705040.

The previous prime is 2020551319. The next prime is 2020551349. The reversal of 2020551321 is 1231550202.

It is not a de Polignac number, because 2020551321 - 2¹ = 2020551319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2020551301) 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 15 ways as a sum of consecutive naturals, for example, 286366 + ... + 293336.

It is an arithmetic number, because the mean of its divisors is an integer number (170674560).

Almost surely, 2^2020551321 is an apocalyptic number.

It is an amenable number.

2020551321 is a deficient number, since it is larger than the sum of its proper divisors (710241639).

2020551321 is a wasteful number, since it uses less digits than its factorization.

2020551321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8276.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 2020551321 is about 44950.5430556740. The cubic root of 2020551321 is about 1264.2218591316.

The spelling of 2020551321 in words is "two billion, twenty million, five hundred fifty-one thousand, three hundred twenty-one".