12012123 has 8 divisors (see below), whose sum is σ = 16859200. Its totient is φ = 7586568.

The previous prime is 12012113. The next prime is 12012131. The reversal of 12012123 is 32121021.

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

It is not a de Polignac number, because 12012123 - 2⁹ = 12011611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12012099 and 12012108.

It is not an unprimeable number, because it can be changed into a prime (12012113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105313 + ... + 105426.

It is an arithmetic number, because the mean of its divisors is an integer number (2107400).

Almost surely, 2^12012123 is an apocalyptic number.

12012123 is a deficient number, since it is larger than the sum of its proper divisors (4847077).

12012123 is a wasteful number, since it uses less digits than its factorization.

12012123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210761.

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

The square root of 12012123 is about 3465.8509777542. The cubic root of 12012123 is about 229.0199190672.

Adding to 12012123 its reverse (32121021), we get a palindrome (44133144).

The spelling of 12012123 in words is "twelve million, twelve thousand, one hundred twenty-three".