243142042143 has 32 divisors (see below), whose sum is σ = 435275269632. Its totient is φ = 116591587200.

The previous prime is 243142042103. The next prime is 243142042147. The reversal of 243142042143 is 341240241342.

It is not a de Polignac number, because 243142042143 - 2⁶ = 243142042079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 243142042143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243142042147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40480188 + ... + 40486193.

It is an arithmetic number, because the mean of its divisors is an integer number (13602352176).

Almost surely, 2^243142042143 is an apocalyptic number.

243142042143 is a deficient number, since it is larger than the sum of its proper divisors (192133227489).

243142042143 is a wasteful number, since it uses less digits than its factorization.

243142042143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80966415.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 243142042143 its reverse (341240241342), we get a palindrome (584382283485).

The spelling of 243142042143 in words is "two hundred forty-three billion, one hundred forty-two million, forty-two thousand, one hundred forty-three".