13112344561161 has 8 divisors (see below), whose sum is σ = 17485688489920. Its totient is φ = 8740281836592.

The previous prime is 13112344561123. The next prime is 13112344561213. The reversal of 13112344561161 is 16116544321131.

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

It is not a de Polignac number, because 13112344561161 - 2⁷ = 13112344561033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13112344561111) 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 7 ways as a sum of consecutive naturals, for example, 320277166 + ... + 320318103.

It is an arithmetic number, because the mean of its divisors is an integer number (2185711061240).

Almost surely, 2^{13112344561161} is an apocalyptic number.

It is an amenable number.

13112344561161 is a deficient number, since it is larger than the sum of its proper divisors (4373343928759).

13112344561161 is an equidigital number, since it uses as much as digits as its factorization.

13112344561161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640602095.

The product of its digits is 51840, while the sum is 39.

Adding to 13112344561161 its reverse (16116544321131), we get a palindrome (29228888882292).

The spelling of 13112344561161 in words is "thirteen trillion, one hundred twelve billion, three hundred forty-four million, five hundred sixty-one thousand, one hundred sixty-one".