142321413442 has 16 divisors (see below), whose sum is σ = 229926304440. Its totient is φ = 65680382592.

The previous prime is 142321413427. The next prime is 142321413449. The reversal of 142321413442 is 244314123241.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 138234496401 + 4086917041 = 371799^2 + 63929^2 .

It is not an unprimeable number, because it can be changed into a prime (142321413449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8718 + ... + 533590.

Almost surely, 2^142321413442 is an apocalyptic number.

142321413442 is a deficient number, since it is larger than the sum of its proper divisors (87604890998).

142321413442 is a wasteful number, since it uses less digits than its factorization.

142321413442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535317.

The product of its digits is 18432, while the sum is 31.

Adding to 142321413442 its reverse (244314123241), we get a palindrome (386635536683).

The spelling of 142321413442 in words is "one hundred forty-two billion, three hundred twenty-one million, four hundred thirteen thousand, four hundred forty-two".