12120313123 has 8 divisors (see below), whose sum is σ = 12769750800. Its totient is φ = 11472028128.

The previous prime is 12120313033. The next prime is 12120313181. The reversal of 12120313123 is 32131302121.

12120313123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12120313123 - 2²¹ = 12118215971 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12120313123.

It is not an unprimeable number, because it can be changed into a prime (12120313193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266536 + ... + 308677.

It is an arithmetic number, because the mean of its divisors is an integer number (1596218850).

Almost surely, 2^12120313123 is an apocalyptic number.

12120313123 is a deficient number, since it is larger than the sum of its proper divisors (649437677).

12120313123 is a wasteful number, since it uses less digits than its factorization.

12120313123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576341.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12120313123 its reverse (32131302121), we get a palindrome (44251615244).

The spelling of 12120313123 in words is "twelve billion, one hundred twenty million, three hundred thirteen thousand, one hundred twenty-three".