13123321113 has 8 divisors (see below), whose sum is σ = 19997441728. Its totient is φ = 7499040624.

The previous prime is 13123321093. The next prime is 13123321177. The reversal of 13123321113 is 31112332131.

It is a happy number.

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

It is not a de Polignac number, because 13123321113 - 2¹⁶ = 13123255577 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 624920053 = 13123321113 / (1 + 3 + 1 + 2 + 3 + 3 + 2 + 1 + 1 + 1 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13123321113.

It is not an unprimeable number, because it can be changed into a prime (13123321613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312460006 + ... + 312460047.

It is an arithmetic number, because the mean of its divisors is an integer number (2499680216).

Almost surely, 2^13123321113 is an apocalyptic number.

It is an amenable number.

13123321113 is a deficient number, since it is larger than the sum of its proper divisors (6874120615).

13123321113 is an equidigital number, since it uses as much as digits as its factorization.

13123321113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624920063.

The product of its digits is 324, while the sum is 21.

Adding to 13123321113 its reverse (31112332131), we get a palindrome (44235653244).

The spelling of 13123321113 in words is "thirteen billion, one hundred twenty-three million, three hundred twenty-one thousand, one hundred thirteen".