2020215321 has 24 divisors (see below), whose sum is σ = 2944861920. Its totient is φ = 1334486400.

The previous prime is 2020215271. The next prime is 2020215331. The reversal of 2020215321 is 1235120202.

It is not a de Polignac number, because 2020215321 - 2⁷ = 2020215193 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2020215294 and 2020215303.

It is not an unprimeable number, because it can be changed into a prime (2020215331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1483681 + ... + 1485041.

It is an arithmetic number, because the mean of its divisors is an integer number (122702580).

Almost surely, 2^2020215321 is an apocalyptic number.

It is an amenable number.

2020215321 is a deficient number, since it is larger than the sum of its proper divisors (924646599).

2020215321 is a wasteful number, since it uses less digits than its factorization.

2020215321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2757 (or 2754 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2020215321 is about 44946.8054593427. The cubic root of 2020215321 is about 1264.1517789035.

Adding to 2020215321 its reverse (1235120202), we get a palindrome (3255335523).

The spelling of 2020215321 in words is "two billion, twenty million, two hundred fifteen thousand, three hundred twenty-one".