13220111132311 has 4 divisors (see below), whose sum is σ = 13220814610432. Its totient is φ = 13219407654192.

The previous prime is 13220111132297. The next prime is 13220111132321. The reversal of 13220111132311 is 11323111102231.

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 13220111132311 - 2⁵ = 13220111132279 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 (13220111132321) 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 3 ways as a sum of consecutive naturals, for example, 351710871 + ... + 351748456.

It is an arithmetic number, because the mean of its divisors is an integer number (3305203652608).

Almost surely, 2^{13220111132311} is an apocalyptic number.

13220111132311 is a deficient number, since it is larger than the sum of its proper divisors (703478121).

13220111132311 is an equidigital number, since it uses as much as digits as its factorization.

13220111132311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703478120.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 13220111132311 its reverse (11323111102231), we get a palindrome (24543222234542).

The spelling of 13220111132311 in words is "thirteen trillion, two hundred twenty billion, one hundred eleven million, one hundred thirty-two thousand, three hundred eleven".