12113121242 has 8 divisors (see below), whose sum is σ = 18592232736. Its totient is φ = 5915710332.

The previous prime is 12113121239. The next prime is 12113121259. The reversal of 12113121242 is 24212131121.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 70425038 + ... + 70425209.

It is an arithmetic number, because the mean of its divisors is an integer number (2324029092).

Almost surely, 2^12113121242 is an apocalyptic number.

12113121242 is a deficient number, since it is larger than the sum of its proper divisors (6479111494).

12113121242 is a wasteful number, since it uses less digits than its factorization.

12113121242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140850292.

The product of its digits is 192, while the sum is 20.

Adding to 12113121242 its reverse (24212131121), we get a palindrome (36325252363).

The spelling of 12113121242 in words is "twelve billion, one hundred thirteen million, one hundred twenty-one thousand, two hundred forty-two".