13112113221023 has 4 divisors (see below), whose sum is σ = 13247289646080. Its totient is φ = 12976936795968.

The previous prime is 13112113220993. The next prime is 13112113221073. The reversal of 13112113221023 is 32012231121131.

It is a happy number.

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 13112113221023 - 2³² = 13107818253727 is a prime.

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 13112113221023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13112113221073) 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, 67588212383 + ... + 67588212576.

It is an arithmetic number, because the mean of its divisors is an integer number (3311822411520).

Almost surely, 2^{13112113221023} is an apocalyptic number.

13112113221023 is a deficient number, since it is larger than the sum of its proper divisors (135176425057).

13112113221023 is an equidigital number, since it uses as much as digits as its factorization.

13112113221023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135176425056.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 13112113221023 its reverse (32012231121131), we get a palindrome (45124344342154).

The spelling of 13112113221023 in words is "thirteen trillion, one hundred twelve billion, one hundred thirteen million, two hundred twenty-one thousand, twenty-three".