120012123 has 24 divisors (see below), whose sum is σ = 203065920. Its totient is φ = 62343120.

The previous prime is 120012089. The next prime is 120012131. The reversal of 120012123 is 321210021.

It is not a de Polignac number, because 120012123 - 2⁶ = 120012059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120012099 and 120012108.

It is not an unprimeable number, because it can be changed into a prime (120012143) 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 23 ways as a sum of consecutive naturals, for example, 35493 + ... + 38726.

It is an arithmetic number, because the mean of its divisors is an integer number (8461080).

Almost surely, 2^120012123 is an apocalyptic number.

120012123 is a deficient number, since it is larger than the sum of its proper divisors (83053797).

120012123 is a wasteful number, since it uses less digits than its factorization.

120012123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74247 (or 74240 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 120012123 is about 10955.0044728425. The cubic root of 120012123 is about 493.2590242451.

Adding to 120012123 its reverse (321210021), we get a palindrome (441222144).

The spelling of 120012123 in words is "one hundred twenty million, twelve thousand, one hundred twenty-three".