12320123123 has 16 divisors (see below), whose sum is σ = 15394406400. Its totient is φ = 9578688000.

The previous prime is 12320123111. The next prime is 12320123129. The reversal of 12320123123 is 32132102321.

It is not a de Polignac number, because 12320123123 - 2¹⁰ = 12320122099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12320123095 and 12320123104.

It is not an unprimeable number, because it can be changed into a prime (12320123129) 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, 143603 + ... + 212748.

It is an arithmetic number, because the mean of its divisors is an integer number (962150400).

Almost surely, 2^12320123123 is an apocalyptic number.

12320123123 is a deficient number, since it is larger than the sum of its proper divisors (3074283277).

12320123123 is a wasteful number, since it uses less digits than its factorization.

12320123123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356818.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12320123123 its reverse (32132102321), we get a palindrome (44452225444).

The spelling of 12320123123 in words is "twelve billion, three hundred twenty million, one hundred twenty-three thousand, one hundred twenty-three".