1024320021 has 16 divisors (see below), whose sum is σ = 1401007104. Its totient is φ = 665385584.

The previous prime is 1024319987. The next prime is 1024320041. The reversal of 1024320021 is 1200234201.

1024320021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1024320021 - 2⁷ = 1024319893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1024320041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16006 + ... + 48008.

It is an arithmetic number, because the mean of its divisors is an integer number (87562944).

Almost surely, 2^1024320021 is an apocalyptic number.

It is an amenable number.

1024320021 is a deficient number, since it is larger than the sum of its proper divisors (376687083).

1024320021 is a wasteful number, since it uses less digits than its factorization.

1024320021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32280.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1024320021 is about 32004.9999375098. Note that the first 4 decimals coincide. The cubic root of 1024320021 is about 1008.0418292906.

Adding to 1024320021 its reverse (1200234201), we get a palindrome (2224554222).

The spelling of 1024320021 in words is "one billion, twenty-four million, three hundred twenty thousand, twenty-one".