12123123320113 has 16 divisors (see below), whose sum is σ = 13070649249280. Its totient is φ = 11177744122944.

The previous prime is 12123123320069. The next prime is 12123123320123. The reversal of 12123123320113 is 31102332132121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12123123320113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12123123320123) 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 15 ways as a sum of consecutive naturals, for example, 41829820 + ... + 42118642.

It is an arithmetic number, because the mean of its divisors is an integer number (816915578080).

Almost surely, 2^{12123123320113} is an apocalyptic number.

12123123320113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12123123320113 is a deficient number, since it is larger than the sum of its proper divisors (947525929167).

12123123320113 is a wasteful number, since it uses less digits than its factorization.

12123123320113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292528.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 12123123320113 its reverse (31102332132121), we get a palindrome (43225455452234).

The spelling of 12123123320113 in words is "twelve trillion, one hundred twenty-three billion, one hundred twenty-three million, three hundred twenty thousand, one hundred thirteen".