2021032321 has 48 divisors (see below), whose sum is σ = 2658668544. Its totient is φ = 1490760000.

The previous prime is 2021032303. The next prime is 2021032327. The reversal of 2021032321 is 1232301202.

It is not a de Polignac number, because 2021032321 - 2⁷ = 2021032193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2021032295 and 2021032304.

It is not an unprimeable number, because it can be changed into a prime (2021032327) 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 47 ways as a sum of consecutive naturals, for example, 20010171 + ... + 20010271.

It is an arithmetic number, because the mean of its divisors is an integer number (55388928).

Almost surely, 2^2021032321 is an apocalyptic number.

It is an amenable number.

2021032321 is a deficient number, since it is larger than the sum of its proper divisors (637636223).

2021032321 is a wasteful number, since it uses less digits than its factorization.

2021032321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2021032321 is about 44955.8930619780. The cubic root of 2021032321 is about 1264.3221687948.

Adding to 2021032321 its reverse (1232301202), we get a palindrome (3253333523).

The spelling of 2021032321 in words is "two billion, twenty-one million, thirty-two thousand, three hundred twenty-one".