13111220320303 has 16 divisors (see below), whose sum is σ = 15010096144896. Its totient is φ = 11218810569120.

The previous prime is 13111220320259. The next prime is 13111220320333. The reversal of 13111220320303 is 30302302211131.

It is not a de Polignac number, because 13111220320303 - 2³⁷ = 12973781366831 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 (13111220320333) 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 15 ways as a sum of consecutive naturals, for example, 31965225 + ... + 32372797.

It is an arithmetic number, because the mean of its divisors is an integer number (938131009056).

Almost surely, 2^{13111220320303} is an apocalyptic number.

13111220320303 is a deficient number, since it is larger than the sum of its proper divisors (1898875824593).

13111220320303 is an equidigital number, since it uses as much as digits as its factorization.

13111220320303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415494.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 13111220320303 its reverse (30302302211131), we get a palindrome (43413522531434).

The spelling of 13111220320303 in words is "thirteen trillion, one hundred eleven billion, two hundred twenty million, three hundred twenty thousand, three hundred three".