142034342243021 has 8 divisors (see below), whose sum is σ = 150389557152120. Its totient is φ = 133679155511808.

The previous prime is 142034342243009. The next prime is 142034342243023. The reversal of 142034342243021 is 120342243430241.

It is a happy number.

142034342243021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2772511387396 + 139261830855625 = 1665086^2 + 11800925^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142034342243021 - 2³⁴ = 142017162373837 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142034342243023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3811295 + ... + 17279891.

It is an arithmetic number, because the mean of its divisors is an integer number (18798694644015).

Almost surely, 2^{142034342243021} is an apocalyptic number.

It is an amenable number.

142034342243021 is a deficient number, since it is larger than the sum of its proper divisors (8355214909099).

142034342243021 is a wasteful number, since it uses less digits than its factorization.

142034342243021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14088943.

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 142034342243021 its reverse (120342243430241), we get a palindrome (262376585673262).

The spelling of 142034342243021 in words is "one hundred forty-two trillion, thirty-four billion, three hundred forty-two million, two hundred forty-three thousand, twenty-one".