1303353215503 has 8 divisors (see below), whose sum is σ = 1345608844416. Its totient is φ = 1261110835200.

The previous prime is 1303353215491. The next prime is 1303353215609. The reversal of 1303353215503 is 3055123533031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1303353215503 - 2⁹ = 1303353214991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303353215803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3112018 + ... + 3505903.

It is an arithmetic number, because the mean of its divisors is an integer number (168201105552).

Almost surely, 2^{1303353215503} is an apocalyptic number.

1303353215503 is a deficient number, since it is larger than the sum of its proper divisors (42255628913).

1303353215503 is an equidigital number, since it uses as much as digits as its factorization.

1303353215503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6624305.

The product of its (nonzero) digits is 60750, while the sum is 34.

Adding to 1303353215503 its reverse (3055123533031), we get a palindrome (4358476748534).

The spelling of 1303353215503 in words is "one trillion, three hundred three billion, three hundred fifty-three million, two hundred fifteen thousand, five hundred three".