1320003012203 has 4 divisors (see below), whose sum is σ = 1320037684248. Its totient is φ = 1319968340160.

The previous prime is 1320003012197. The next prime is 1320003012239. The reversal of 1320003012203 is 3022103000231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1320003012203 - 2³⁴ = 1302823143019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320003012283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17278853 + ... + 17355078.

It is an arithmetic number, because the mean of its divisors is an integer number (330009421062).

Almost surely, 2^{1320003012203} is an apocalyptic number.

1320003012203 is a deficient number, since it is larger than the sum of its proper divisors (34672045).

1320003012203 is an equidigital number, since it uses as much as digits as its factorization.

1320003012203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34672044.

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

Adding to 1320003012203 its reverse (3022103000231), we get a palindrome (4342106012434).

The spelling of 1320003012203 in words is "one trillion, three hundred twenty billion, three million, twelve thousand, two hundred three".