1020244321 has 4 divisors (see below), whose sum is σ = 1020672000. Its totient is φ = 1019816644.

The previous prime is 1020244301. The next prime is 1020244333. The reversal of 1020244321 is 1234420201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1020244321 - 2¹¹ = 1020242273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020244301) 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, 210241 + ... + 215038.

It is an arithmetic number, because the mean of its divisors is an integer number (255168000).

Almost surely, 2^1020244321 is an apocalyptic number.

It is an amenable number.

1020244321 is a deficient number, since it is larger than the sum of its proper divisors (427679).

1020244321 is an equidigital number, since it uses as much as digits as its factorization.

1020244321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427678.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1020244321 is about 31941.2636099451. The cubic root of 1020244321 is about 1006.7030753879.

Adding to 1020244321 its reverse (1234420201), we get a palindrome (2254664522).

The spelling of 1020244321 in words is "one billion, twenty million, two hundred forty-four thousand, three hundred twenty-one".