1020304321003 has 32 divisors (see below), whose sum is σ = 1152906670080. Its totient is φ = 894552960000.

The previous prime is 1020304320901. The next prime is 1020304321093. The reversal of 1020304321003 is 3001234030201.

It is a cyclic number.

It is not a de Polignac number, because 1020304321003 - 2⁹ = 1020304320491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020304321093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180358551 + ... + 180364207.

It is an arithmetic number, because the mean of its divisors is an integer number (36028333440).

Almost surely, 2^{1020304321003} is an apocalyptic number.

1020304321003 is a deficient number, since it is larger than the sum of its proper divisors (132602349077).

1020304321003 is a wasteful number, since it uses less digits than its factorization.

1020304321003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7419.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 1020304321003 its reverse (3001234030201), we get a palindrome (4021538351204).

The spelling of 1020304321003 in words is "one trillion, twenty billion, three hundred four million, three hundred twenty-one thousand, three".