12100123 has 8 divisors (see below), whose sum is σ = 13851648. Its totient is φ = 10354344.

The previous prime is 12100111. The next prime is 12100159. The reversal of 12100123 is 32100121.

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

It is not a de Polignac number, because 12100123 - 2⁹ = 12099611 is a prime.

It is a Duffinian number.

12100123 is a modest number, since divided by 123 gives 121 as remainder.

It is not an unprimeable number, because it can be changed into a prime (12100183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5040 + ... + 7042.

It is an arithmetic number, because the mean of its divisors is an integer number (1731456).

Almost surely, 2^12100123 is an apocalyptic number.

12100123 is a deficient number, since it is larger than the sum of its proper divisors (1751525).

12100123 is an equidigital number, since it uses as much as digits as its factorization.

12100123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2873.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 12100123 is about 3478.5231061472. The cubic root of 12100123 is about 229.5778203696.

Adding to 12100123 its reverse (32100121), we get a palindrome (44200244).

The spelling of 12100123 in words is "twelve million, one hundred thousand, one hundred twenty-three".