142320142221134 has 16 divisors (see below), whose sum is σ = 220366976173440. Its totient is φ = 68864489837280.

The previous prime is 142320142221073. The next prime is 142320142221149. The reversal of 142320142221134 is 431122241023241.

142320142221134 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×142320142221134² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142320142221134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68359172 + ... + 70410344.

It is an arithmetic number, because the mean of its divisors is an integer number (13772936010840).

Almost surely, 2^{142320142221134} is an apocalyptic number.

142320142221134 is a deficient number, since it is larger than the sum of its proper divisors (78046833952306).

142320142221134 is a wasteful number, since it uses less digits than its factorization.

142320142221134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3170315.

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 142320142221134 its reverse (431122241023241), we get a palindrome (573442383244375).

The spelling of 142320142221134 in words is "one hundred forty-two trillion, three hundred twenty billion, one hundred forty-two million, two hundred twenty-one thousand, one hundred thirty-four".