12100042423 has 16 divisors (see below), whose sum is σ = 14436587520. Its totient is φ = 9915909696.

The previous prime is 12100042397. The next prime is 12100042453. The reversal of 12100042423 is 32424000121.

It is not a de Polignac number, because 12100042423 - 2⁵ = 12100042391 is a prime.

It is a super-2 number, since 2×12100042423² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12100042423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100042453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353458 + ... + 386176.

It is an arithmetic number, because the mean of its divisors is an integer number (902286720).

Almost surely, 2^12100042423 is an apocalyptic number.

12100042423 is a deficient number, since it is larger than the sum of its proper divisors (2336545097).

12100042423 is a wasteful number, since it uses less digits than its factorization.

12100042423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35046.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 12100042423 its reverse (32424000121), we get a palindrome (44524042544).

The spelling of 12100042423 in words is "twelve billion, one hundred million, forty-two thousand, four hundred twenty-three".