1303445312203 has 4 divisors (see below), whose sum is σ = 1380118565880. Its totient is φ = 1226772058528.

The previous prime is 1303445312173. The next prime is 1303445312219. The reversal of 1303445312203 is 3022135443031.

It is a happy number.

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 1303445312203 - 2²⁵ = 1303411757771 is a prime.

It is a super-2 number, since 2×1303445312203² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1303445312243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38336626813 + ... + 38336626846.

It is an arithmetic number, because the mean of its divisors is an integer number (345029641470).

Almost surely, 2^{1303445312203} is an apocalyptic number.

1303445312203 is a deficient number, since it is larger than the sum of its proper divisors (76673253677).

1303445312203 is an equidigital number, since it uses as much as digits as its factorization.

1303445312203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76673253676.

The product of its (nonzero) digits is 25920, while the sum is 31.

The spelling of 1303445312203 in words is "one trillion, three hundred three billion, four hundred forty-five million, three hundred twelve thousand, two hundred three".