142134321242 has 32 divisors (see below), whose sum is σ = 231332298624. Its totient is φ = 65231756800.

The previous prime is 142134321209. The next prime is 142134321271. The reversal of 142134321242 is 242123431241.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4180403 + ... + 4214265.

It is an arithmetic number, because the mean of its divisors is an integer number (7229134332).

Almost surely, 2^142134321242 is an apocalyptic number.

142134321242 is a deficient number, since it is larger than the sum of its proper divisors (89197977382).

142134321242 is a wasteful number, since it uses less digits than its factorization.

142134321242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36934.

The product of its digits is 9216, while the sum is 29.

Adding to 142134321242 its reverse (242123431241), we get a palindrome (384257752483).

The spelling of 142134321242 in words is "one hundred forty-two billion, one hundred thirty-four million, three hundred twenty-one thousand, two hundred forty-two".