142320232423 has 4 divisors (see below), whose sum is σ = 142325045568. Its totient is φ = 142315419280.

The previous prime is 142320232361. The next prime is 142320232451. The reversal of 142320232423 is 324232023241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324232023241 = 7 ⋅46318860463.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142320232423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142320232391 and 142320232400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142320232723) 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, 2361943 + ... + 2421448.

It is an arithmetic number, because the mean of its divisors is an integer number (35581261392).

Almost surely, 2^142320232423 is an apocalyptic number.

142320232423 is a deficient number, since it is larger than the sum of its proper divisors (4813145).

142320232423 is an equidigital number, since it uses as much as digits as its factorization.

142320232423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4813144.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 142320232423 its reverse (324232023241), we get a palindrome (466552255664).

The spelling of 142320232423 in words is "one hundred forty-two billion, three hundred twenty million, two hundred thirty-two thousand, four hundred twenty-three".