142242433103123 has 4 divisors (see below), whose sum is σ = 143265759960120. Its totient is φ = 141219106246128.

The previous prime is 142242433103119. The next prime is 142242433103161. The reversal of 142242433103123 is 321301334242241.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 142242433103123 - 2² = 142242433103119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142242433103423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511663428290 + ... + 511663428567.

It is an arithmetic number, because the mean of its divisors is an integer number (35816439990030).

Almost surely, 2^{142242433103123} is an apocalyptic number.

142242433103123 is a deficient number, since it is larger than the sum of its proper divisors (1023326856997).

142242433103123 is a wasteful number, since it uses less digits than its factorization.

142242433103123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023326856996.

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 142242433103123 its reverse (321301334242241), we get a palindrome (463543767345364).

The spelling of 142242433103123 in words is "one hundred forty-two trillion, two hundred forty-two billion, four hundred thirty-three million, one hundred three thousand, one hundred twenty-three".