1003323401 has 6 divisors (see below), whose sum is σ = 1036733706. Its totient is φ = 970957200.

The previous prime is 1003323389. The next prime is 1003323403. The reversal of 1003323401 is 1043233001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1001785801 + 1537600 = 31651^2 + 1240^2 .

It is not a de Polignac number, because 1003323401 - 2¹⁴ = 1003307017 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 1003323401.

It is not an unprimeable number, because it can be changed into a prime (1003323403) 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 5 ways as a sum of consecutive naturals, for example, 521060 + ... + 522981.

It is an arithmetic number, because the mean of its divisors is an integer number (172788951).

Almost surely, 2^1003323401 is an apocalyptic number.

It is an amenable number.

1003323401 is a deficient number, since it is larger than the sum of its proper divisors (33410305).

1003323401 is an equidigital number, since it uses as much as digits as its factorization.

1003323401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044103 (or 1044072 counting only the distinct ones).

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

The square root of 1003323401 is about 31675.2805985993. The cubic root of 1003323401 is about 1001.1065753726.

Adding to 1003323401 its reverse (1043233001), we get a palindrome (2046556402).

The spelling of 1003323401 in words is "one billion, three million, three hundred twenty-three thousand, four hundred one".