142431023 has 4 divisors (see below), whose sum is σ = 162778320. Its totient is φ = 122083728.

The previous prime is 142431013. The next prime is 142431031. The reversal of 142431023 is 320134241.

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 142431023 - 2⁸ = 142430767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142430986 and 142431004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142431013) 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, 10173638 + ... + 10173651.

It is an arithmetic number, because the mean of its divisors is an integer number (40694580).

Almost surely, 2^142431023 is an apocalyptic number.

142431023 is a deficient number, since it is larger than the sum of its proper divisors (20347297).

142431023 is an equidigital number, since it uses as much as digits as its factorization.

142431023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20347296.

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

The square root of 142431023 is about 11934.4469080054. The cubic root of 142431023 is about 522.2376733134.

Adding to 142431023 its reverse (320134241), we get a palindrome (462565264).

The spelling of 142431023 in words is "one hundred forty-two million, four hundred thirty-one thousand, twenty-three".