142340013121 has 2 divisors, whose sum is σ = 142340013122. Its totient is φ = 142340013120.

The previous prime is 142340013073. The next prime is 142340013241. The reversal of 142340013121 is 121310043241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139006682896 + 3333330225 = 372836^2 + 57735^2 .

It is an emirp because it is prime and its reverse (121310043241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142340013121 - 2¹⁹ = 142339488833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142340013092 and 142340013101.

It is not a weakly prime, because it can be changed into another prime (142340013421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71170006560 + 71170006561.

It is an arithmetic number, because the mean of its divisors is an integer number (71170006561).

Almost surely, 2^142340013121 is an apocalyptic number.

It is an amenable number.

142340013121 is a deficient number, since it is larger than the sum of its proper divisors (1).

142340013121 is an equidigital number, since it uses as much as digits as its factorization.

142340013121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 142340013121 its reverse (121310043241), we get a palindrome (263650056362).

The spelling of 142340013121 in words is "one hundred forty-two billion, three hundred forty million, thirteen thousand, one hundred twenty-one".