142120120444 has 12 divisors (see below), whose sum is σ = 250991956600. Its totient is φ = 70408132848.

The previous prime is 142120120421. The next prime is 142120120451. The reversal of 142120120444 is 444021021241.

It is a happy number.

It is a congruent 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, 162981354 + ... + 162982225.

Almost surely, 2^142120120444 is an apocalyptic number.

It is an amenable number.

142120120444 is a deficient number, since it is larger than the sum of its proper divisors (108871836156).

142120120444 is a wasteful number, since it uses less digits than its factorization.

142120120444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325963692 (or 325963690 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 142120120444 its reverse (444021021241), we get a palindrome (586141141685).

The spelling of 142120120444 in words is "one hundred forty-two billion, one hundred twenty million, one hundred twenty thousand, four hundred forty-four".