142423101245122 has 4 divisors (see below), whose sum is σ = 213634651867686. Its totient is φ = 71211550622560.

The previous prime is 142423101245111. The next prime is 142423101245149. The reversal of 142423101245122 is 221542101324241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 134778655955241 + 7644445289881 = 11609421^2 + 2764859^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35605775311279 + ... + 35605775311282.

Almost surely, 2^{142423101245122} is an apocalyptic number.

142423101245122 is a deficient number, since it is larger than the sum of its proper divisors (71211550622564).

142423101245122 is an equidigital number, since it uses as much as digits as its factorization.

142423101245122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71211550622563.

The product of its (nonzero) digits is 30720, while the sum is 34.

Adding to 142423101245122 its reverse (221542101324241), we get a palindrome (363965202569363).

The spelling of 142423101245122 in words is "one hundred forty-two trillion, four hundred twenty-three billion, one hundred one million, two hundred forty-five thousand, one hundred twenty-two".