12131421242 has 8 divisors (see below), whose sum is σ = 18197610816. Its totient is φ = 6065550972.

The previous prime is 12131421229. The next prime is 12131421257. The reversal of 12131421242 is 24212413121.

12131421242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75983 + ... + 173309.

It is an arithmetic number, because the mean of its divisors is an integer number (2274701352).

Almost surely, 2^12131421242 is an apocalyptic number.

12131421242 is a deficient number, since it is larger than the sum of its proper divisors (6066189574).

12131421242 is an equidigital number, since it uses as much as digits as its factorization.

12131421242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159652.

The product of its digits is 768, while the sum is 23.

Adding to 12131421242 its reverse (24212413121), we get a palindrome (36343834363).

The spelling of 12131421242 in words is "twelve billion, one hundred thirty-one million, four hundred twenty-one thousand, two hundred forty-two".