423240543143 has 4 divisors (see below), whose sum is σ = 461716956168. Its totient is φ = 384764130120.

The previous prime is 423240543113. The next prime is 423240543179. The reversal of 423240543143 is 341345042324.

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 423240543143 - 2⁸ = 423240542887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423240543113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19238206496 + ... + 19238206517.

It is an arithmetic number, because the mean of its divisors is an integer number (115429239042).

Almost surely, 2^423240543143 is an apocalyptic number.

423240543143 is a deficient number, since it is larger than the sum of its proper divisors (38476413025).

423240543143 is a wasteful number, since it uses less digits than its factorization.

423240543143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38476413024.

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 423240543143 its reverse (341345042324), we get a palindrome (764585585467).

The spelling of 423240543143 in words is "four hundred twenty-three billion, two hundred forty million, five hundred forty-three thousand, one hundred forty-three".