142120042014021 has 32 divisors (see below), whose sum is σ = 202453123420800. Its totient is φ = 88370317799424.

The previous prime is 142120042013981. The next prime is 142120042014043. The reversal of 142120042014021 is 120410240021241.

It is a happy number.

It is not a de Polignac number, because 142120042014021 - 2⁷ = 142120042013893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142120042013982 and 142120042014000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142120042018021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18306015 + ... + 24886748.

It is an arithmetic number, because the mean of its divisors is an integer number (6326660106900).

Almost surely, 2^{142120042014021} is an apocalyptic number.

It is an amenable number.

142120042014021 is a deficient number, since it is larger than the sum of its proper divisors (60333081406779).

142120042014021 is a wasteful number, since it uses less digits than its factorization.

142120042014021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43193365.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 142120042014021 its reverse (120410240021241), we get a palindrome (262530282035262).

The spelling of 142120042014021 in words is "one hundred forty-two trillion, one hundred twenty billion, forty-two million, fourteen thousand, twenty-one".