1003321222403 has 2 divisors, whose sum is σ = 1003321222404. Its totient is φ = 1003321222402.

The previous prime is 1003321222381. The next prime is 1003321222447. The reversal of 1003321222403 is 3042221233001.

1003321222403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (3042221233001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1003321222403 - 2³⁶ = 934601745667 is a prime.

It is not a weakly prime, because it can be changed into another prime (1003321222483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501660611201 + 501660611202.

It is an arithmetic number, because the mean of its divisors is an integer number (501660611202).

Almost surely, 2^{1003321222403} is an apocalyptic number.

1003321222403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1003321222403 is an equidigital number, since it uses as much as digits as its factorization.

1003321222403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 1003321222403 its reverse (3042221233001), we get a palindrome (4045542455404).

The spelling of 1003321222403 in words is "one trillion, three billion, three hundred twenty-one million, two hundred twenty-two thousand, four hundred three".