12120123210323 has 4 divisors (see below), whose sum is σ = 12121115780328. Its totient is φ = 12119130640320.

The previous prime is 12120123210317. The next prime is 12120123210337. The reversal of 12120123210323 is 32301232102121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12120123210323 - 2³⁸ = 11845245303379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120123210313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496266686 + ... + 496291107.

It is an arithmetic number, because the mean of its divisors is an integer number (3030278945082).

Almost surely, 2^{12120123210323} is an apocalyptic number.

12120123210323 is a deficient number, since it is larger than the sum of its proper divisors (992570005).

12120123210323 is an equidigital number, since it uses as much as digits as its factorization.

12120123210323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992570004.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 12120123210323 its reverse (32301232102121), we get a palindrome (44421355312444).

The spelling of 12120123210323 in words is "twelve trillion, one hundred twenty billion, one hundred twenty-three million, two hundred ten thousand, three hundred twenty-three".