142215403331442 has 32 divisors (see below), whose sum is σ = 325067209133184. Its totient is φ = 40632543619200.

The previous prime is 142215403331431. The next prime is 142215403331473. The reversal of 142215403331442 is 244133304512241.

It is a self number, because there is not a number n which added to its sum of digits gives 142215403331442.

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, 13826659 + ... + 21808422.

It is an arithmetic number, because the mean of its divisors is an integer number (10158350285412).

Almost surely, 2^{142215403331442} is an apocalyptic number.

142215403331442 is an abundant number, since it is smaller than the sum of its proper divisors (182851805801742).

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

142215403331442 is a wasteful number, since it uses less digits than its factorization.

142215403331442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35730114.

The product of its (nonzero) digits is 276480, while the sum is 39.

Adding to 142215403331442 its reverse (244133304512241), we get a palindrome (386348707843683).

The spelling of 142215403331442 in words is "one hundred forty-two trillion, two hundred fifteen billion, four hundred three million, three hundred thirty-one thousand, four hundred forty-two".