12120120123 has 8 divisors (see below), whose sum is σ = 16161827136. Its totient is φ = 8079246600.

The previous prime is 12120120091. The next prime is 12120120161. The reversal of 12120120123 is 32102102121.

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

It is not a de Polignac number, because 12120120123 - 2⁵ = 12120120091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12120120323) 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 7 ways as a sum of consecutive naturals, for example, 173613 + ... + 233198.

It is an arithmetic number, because the mean of its divisors is an integer number (2020228392).

Almost surely, 2^12120120123 is an apocalyptic number.

12120120123 is a deficient number, since it is larger than the sum of its proper divisors (4041707013).

12120120123 is an equidigital number, since it uses as much as digits as its factorization.

12120120123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416745.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12120120123 its reverse (32102102121), we get a palindrome (44222222244).

The spelling of 12120120123 in words is "twelve billion, one hundred twenty million, one hundred twenty thousand, one hundred twenty-three".