13112131322121 has 16 divisors (see below), whose sum is σ = 18828791479680. Its totient is φ = 8068525718400.

The previous prime is 13112131322063. The next prime is 13112131322159. The reversal of 13112131322121 is 12122313121131.

It is not a de Polignac number, because 13112131322121 - 2⁶ = 13112131322057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13112131322091 and 13112131322100.

It is not an unprimeable number, because it can be changed into a prime (13112131322021) 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 15 ways as a sum of consecutive naturals, for example, 9294805 + ... + 10612146.

It is an arithmetic number, because the mean of its divisors is an integer number (1176799467480).

Almost surely, 2^{13112131322121} is an apocalyptic number.

It is an amenable number.

13112131322121 is a deficient number, since it is larger than the sum of its proper divisors (5716660157559).

13112131322121 is a wasteful number, since it uses less digits than its factorization.

13112131322121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19923856.

The product of its digits is 432, while the sum is 24.

Adding to 13112131322121 its reverse (12122313121131), we get a palindrome (25234444443252).

The spelling of 13112131322121 in words is "thirteen trillion, one hundred twelve billion, one hundred thirty-one million, three hundred twenty-two thousand, one hundred twenty-one".