143312342 has 4 divisors (see below), whose sum is σ = 214968516. Its totient is φ = 71656170.

The previous prime is 143312341. The next prime is 143312347. The reversal of 143312342 is 243213341.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143312341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35828084 + ... + 35828087.

It is an arithmetic number, because the mean of its divisors is an integer number (53742129).

Almost surely, 2^143312342 is an apocalyptic number.

143312342 is a deficient number, since it is larger than the sum of its proper divisors (71656174).

143312342 is an equidigital number, since it uses as much as digits as its factorization.

143312342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71656173.

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

The square root of 143312342 is about 11971.3132947058. The cubic root of 143312342 is about 523.3126074887.

Adding to 143312342 its reverse (243213341), we get a palindrome (386525683).

Subtracting 143312342 from its reverse (243213341), we obtain a palindrome (99900999).

The spelling of 143312342 in words is "one hundred forty-three million, three hundred twelve thousand, three hundred forty-two".