142322123 has 4 divisors (see below), whose sum is σ = 142395528. Its totient is φ = 142248720.

The previous prime is 142322107. The next prime is 142322129. The reversal of 142322123 is 321223241.

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 142322123 - 2⁴ = 142322107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142322095 and 142322104.

It is not an unprimeable number, because it can be changed into a prime (142322129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33713 + ... + 37698.

It is an arithmetic number, because the mean of its divisors is an integer number (35598882).

Almost surely, 2^142322123 is an apocalyptic number.

142322123 is a deficient number, since it is larger than the sum of its proper divisors (73405).

142322123 is an equidigital number, since it uses as much as digits as its factorization.

142322123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73404.

The product of its digits is 576, while the sum is 20.

The square root of 142322123 is about 11929.8836121733. The cubic root of 142322123 is about 522.1045417762.

Adding to 142322123 its reverse (321223241), we get a palindrome (463545364).

The spelling of 142322123 in words is "one hundred forty-two million, three hundred twenty-two thousand, one hundred twenty-three".