12142240342 has 8 divisors (see below), whose sum is σ = 18322423056. Its totient is φ = 6034765992.

The previous prime is 12142240321. The next prime is 12142240343. The reversal of 12142240342 is 24304224121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12142240343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18176673 + ... + 18177340.

It is an arithmetic number, because the mean of its divisors is an integer number (2290302882).

Almost surely, 2^12142240342 is an apocalyptic number.

12142240342 is a deficient number, since it is larger than the sum of its proper divisors (6180182714).

12142240342 is a wasteful number, since it uses less digits than its factorization.

12142240342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36354182.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 12142240342 its reverse (24304224121), we get a palindrome (36446464463).

The spelling of 12142240342 in words is "twelve billion, one hundred forty-two million, two hundred forty thousand, three hundred forty-two".