142321423022242 has 8 divisors (see below), whose sum is σ = 213482274515100. Its totient is φ = 71160664850544.

The previous prime is 142321423022237. The next prime is 142321423022269. The reversal of 142321423022242 is 242220324123241.

It can be written as a sum of positive squares in 2 ways, for example, as 139831594651681 + 2489828370561 = 11825041^2 + 1577919^2 .

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 = 142321423022198 and 142321423022207.

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, 19384117 + ... + 25697992.

Almost surely, 2^{142321423022242} is an apocalyptic number.

142321423022242 is a deficient number, since it is larger than the sum of its proper divisors (71160851492858).

142321423022242 is a wasteful number, since it uses less digits than its factorization.

142321423022242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46660580.

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

Adding to 142321423022242 its reverse (242220324123241), we get a palindrome (384541747145483).

The spelling of 142321423022242 in words is "one hundred forty-two trillion, three hundred twenty-one billion, four hundred twenty-three million, twenty-two thousand, two hundred forty-two".