12142323440242 has 8 divisors (see below), whose sum is σ = 18240152051376. Its totient is φ = 6062272756452.

The previous prime is 12142323440239. The next prime is 12142323440297. The reversal of 12142323440242 is 24204432324121.

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

It is a junction number, because it is equal to n+sod(n) for n = 12142323440198 and 12142323440207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4444480128 + ... + 4444482859.

It is an arithmetic number, because the mean of its divisors is an integer number (2280019006422).

Almost surely, 2^{12142323440242} is an apocalyptic number.

12142323440242 is a deficient number, since it is larger than the sum of its proper divisors (6097828611134).

12142323440242 is an equidigital number, since it uses as much as digits as its factorization.

12142323440242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8888963672.

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 12142323440242 its reverse (24204432324121), we get a palindrome (36346755764363).

The spelling of 12142323440242 in words is "twelve trillion, one hundred forty-two billion, three hundred twenty-three million, four hundred forty thousand, two hundred forty-two".