13331231111999 has 4 divisors (see below), whose sum is σ = 13331776626480. Its totient is φ = 13330685597520.

The previous prime is 13331231111971. The next prime is 13331231112007. The reversal of 13331231111999 is 99911113213331.

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 13331231111999 - 2⁸ = 13331231111743 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 (13331231101999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272720582 + ... + 272769459.

It is an arithmetic number, because the mean of its divisors is an integer number (3332944156620).

Almost surely, 2^{13331231111999} is an apocalyptic number.

13331231111999 is a deficient number, since it is larger than the sum of its proper divisors (545514481).

13331231111999 is an equidigital number, since it uses as much as digits as its factorization.

13331231111999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545514480.

The product of its digits is 118098, while the sum is 47.

The spelling of 13331231111999 in words is "thirteen trillion, three hundred thirty-one billion, two hundred thirty-one million, one hundred eleven thousand, nine hundred ninety-nine".