1320304203 has 6 divisors (see below), whose sum is σ = 1907106084. Its totient is φ = 880202796.

The previous prime is 1320304127. The next prime is 1320304241. The reversal of 1320304203 is 3024030231.

It is not a de Polignac number, because 1320304203 - 2²⁰ = 1319255627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1320304273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73350225 + ... + 73350242.

It is an arithmetic number, because the mean of its divisors is an integer number (317851014).

Almost surely, 2^1320304203 is an apocalyptic number.

1320304203 is a deficient number, since it is larger than the sum of its proper divisors (586801881).

1320304203 is a wasteful number, since it uses less digits than its factorization.

1320304203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146700473 (or 146700470 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 1320304203 is about 36335.9904640014. The cubic root of 1320304203 is about 1097.0455714184.

Adding to 1320304203 its reverse (3024030231), we get a palindrome (4344334434).

The spelling of 1320304203 in words is "one billion, three hundred twenty million, three hundred four thousand, two hundred three".