13112321114505 has 32 divisors (see below), whose sum is σ = 21268361165184. Its totient is φ = 6897033432576.

The previous prime is 13112321114471. The next prime is 13112321114507. The reversal of 13112321114505 is 50541112321131.

It is not a de Polignac number, because 13112321114505 - 2⁶ = 13112321114441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13112321114507) 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 31 ways as a sum of consecutive naturals, for example, 18694407 + ... + 19383123.

It is an arithmetic number, because the mean of its divisors is an integer number (664636286412).

Almost surely, 2^{13112321114505} is an apocalyptic number.

13112321114505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13112321114505 is a deficient number, since it is larger than the sum of its proper divisors (8156040050679).

13112321114505 is a wasteful number, since it uses less digits than its factorization.

13112321114505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706185.

The product of its (nonzero) digits is 3600, while the sum is 30.

Adding to 13112321114505 its reverse (50541112321131), we get a palindrome (63653433435636).

The spelling of 13112321114505 in words is "thirteen trillion, one hundred twelve billion, three hundred twenty-one million, one hundred fourteen thousand, five hundred five".