1020332321 has 8 divisors (see below), whose sum is σ = 1034330880. Its totient is φ = 1006360992.

The previous prime is 1020332237. The next prime is 1020332329. The reversal of 1020332321 is 1232330201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020332321 - 2²⁶ = 953223457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020332321.

It is not an unprimeable number, because it can be changed into a prime (1020332329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75356 + ... + 87858.

It is an arithmetic number, because the mean of its divisors is an integer number (129291360).

Almost surely, 2^1020332321 is an apocalyptic number.

It is an amenable number.

1020332321 is a deficient number, since it is larger than the sum of its proper divisors (13998559).

1020332321 is a wasteful number, since it uses less digits than its factorization.

1020332321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13615.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1020332321 is about 31942.6411087123. The cubic root of 1020332321 is about 1006.7320185609.

Adding to 1020332321 its reverse (1232330201), we get a palindrome (2252662522).

It can be divided in two parts, 10203 and 32321, that added together give a palindrome (42524).

The spelling of 1020332321 in words is "one billion, twenty million, three hundred thirty-two thousand, three hundred twenty-one".