142420303402444 has 12 divisors (see below), whose sum is σ = 251054768407464. Its totient is φ = 70690369571744.

The previous prime is 142420303402417. The next prime is 142420303402501. The reversal of 142420303402444 is 444204303024241.

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, 129945531754 + ... + 129945532849.

It is an arithmetic number, because the mean of its divisors is an integer number (20921230700622).

Almost surely, 2^{142420303402444} is an apocalyptic number.

It is an amenable number.

142420303402444 is a deficient number, since it is larger than the sum of its proper divisors (108634465005020).

142420303402444 is a wasteful number, since it uses less digits than its factorization.

142420303402444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259891064744 (or 259891064742 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 37.

Adding to 142420303402444 its reverse (444204303024241), we get a palindrome (586624606426685).

The spelling of 142420303402444 in words is "one hundred forty-two trillion, four hundred twenty billion, three hundred three million, four hundred two thousand, four hundred forty-four".