1303321321203 has 16 divisors (see below), whose sum is σ = 1896061862016. Its totient is φ = 789757643840.

The previous prime is 1303321321193. The next prime is 1303321321229. The reversal of 1303321321203 is 3021231233031.

It is not a de Polignac number, because 1303321321203 - 2¹⁰ = 1303321320179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1303321321903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3154101 + ... + 3543302.

It is an arithmetic number, because the mean of its divisors is an integer number (118503866376).

Almost surely, 2^{1303321321203} is an apocalyptic number.

1303321321203 is a deficient number, since it is larger than the sum of its proper divisors (592740540813).

1303321321203 is a wasteful number, since it uses less digits than its factorization.

1303321321203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6703314.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1303321321203 its reverse (3021231233031), we get a palindrome (4324552554234).

The spelling of 1303321321203 in words is "one trillion, three hundred three billion, three hundred twenty-one million, three hundred twenty-one thousand, two hundred three".