142120312031442 has 8 divisors (see below), whose sum is σ = 284240624062896. Its totient is φ = 47373437343812.

The previous prime is 142120312031437. The next prime is 142120312031507. The reversal of 142120312031442 is 244130213021241.

It is a happy number.

142120312031442 is digitally balanced in base 3, 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.

142120312031442 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11843359335948 + ... + 11843359335959.

It is an arithmetic number, because the mean of its divisors is an integer number (35530078007862).

Almost surely, 2^{142120312031442} is an apocalyptic number.

142120312031442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142120312031442 is a wasteful number, since it uses less digits than its factorization.

142120312031442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23686718671912.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 142120312031442 its reverse (244130213021241), we get a palindrome (386250525052683).

The spelling of 142120312031442 in words is "one hundred forty-two trillion, one hundred twenty billion, three hundred twelve million, thirty-one thousand, four hundred forty-two".