142130023 has 4 divisors (see below), whose sum is σ = 162434320. Its totient is φ = 121825728.

The previous prime is 142130011. The next prime is 142130033. The reversal of 142130023 is 320031241.

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 142130023 - 2²⁵ = 108575591 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142129979 and 142130006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142130033) 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, 10152138 + ... + 10152151.

It is an arithmetic number, because the mean of its divisors is an integer number (40608580).

Almost surely, 2^142130023 is an apocalyptic number.

142130023 is a deficient number, since it is larger than the sum of its proper divisors (20304297).

142130023 is an equidigital number, since it uses as much as digits as its factorization.

142130023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20304296.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 142130023 is about 11921.8296834001. The cubic root of 142130023 is about 521.8695316003.

Adding to 142130023 its reverse (320031241), we get a palindrome (462161264).

The spelling of 142130023 in words is "one hundred forty-two million, one hundred thirty thousand, twenty-three".