243202420143 has 24 divisors (see below), whose sum is σ = 351995904000. Its totient is φ = 161810432784.

The previous prime is 243202420133. The next prime is 243202420147. The reversal of 243202420143 is 341024202342.

243202420143 is a `hidden beast` number, since 2 + 432 + 0 + 24 + 201 + 4 + 3 = 666.

It is not a de Polignac number, because 243202420143 - 2⁴ = 243202420127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243202420147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22415746 + ... + 22426592.

It is an arithmetic number, because the mean of its divisors is an integer number (14666496000).

Almost surely, 2^243202420143 is an apocalyptic number.

243202420143 is a deficient number, since it is larger than the sum of its proper divisors (108793483857).

243202420143 is a wasteful number, since it uses less digits than its factorization.

243202420143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15611 (or 15608 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 243202420143 its reverse (341024202342), we get a palindrome (584226622485).

The spelling of 243202420143 in words is "two hundred forty-three billion, two hundred two million, four hundred twenty thousand, one hundred forty-three".