120123324115123 has 4 divisors (see below), whose sum is σ = 137283798988720. Its totient is φ = 102962849241528.

The previous prime is 120123324115111. The next prime is 120123324115199. The reversal of 120123324115123 is 321511423321021.

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 120123324115123 - 2³³ = 120114734180531 is a prime.

It is a super-2 number, since 2×120123324115123² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120123324115103) 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 3 ways as a sum of consecutive naturals, for example, 8580237436788 + ... + 8580237436801.

It is an arithmetic number, because the mean of its divisors is an integer number (34320949747180).

Almost surely, 2^{120123324115123} is an apocalyptic number.

120123324115123 is a deficient number, since it is larger than the sum of its proper divisors (17160474873597).

120123324115123 is an equidigital number, since it uses as much as digits as its factorization.

120123324115123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17160474873596.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 120123324115123 its reverse (321511423321021), we get a palindrome (441634747436144).

The spelling of 120123324115123 in words is "one hundred twenty trillion, one hundred twenty-three billion, three hundred twenty-four million, one hundred fifteen thousand, one hundred twenty-three".