143142323 has 4 divisors (see below), whose sum is σ = 143261160. Its totient is φ = 143023488.

The previous prime is 143142299. The next prime is 143142331. The reversal of 143142323 is 323241341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323241341 = 2351 ⋅137491.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143142323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143142383) 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, 57593 + ... + 60026.

It is an arithmetic number, because the mean of its divisors is an integer number (35815290).

Almost surely, 2^143142323 is an apocalyptic number.

143142323 is a deficient number, since it is larger than the sum of its proper divisors (118837).

143142323 is a wasteful number, since it uses less digits than its factorization.

143142323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118836.

The product of its digits is 1728, while the sum is 23.

The square root of 143142323 is about 11964.2100867546. The cubic root of 143142323 is about 523.1055811371.

Adding to 143142323 its reverse (323241341), we get a palindrome (466383664).

The spelling of 143142323 in words is "one hundred forty-three million, one hundred forty-two thousand, three hundred twenty-three".