243251242224143 has 16 divisors (see below), whose sum is σ = 251204617146336. Its totient is φ = 235440930493440.

The previous prime is 243251242224139. The next prime is 243251242224167. The reversal of 243251242224143 is 341422242152342.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 243251242224143 - 2² = 243251242224139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243251242224143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243251242214143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61150805 + ... + 65007102.

It is an arithmetic number, because the mean of its divisors is an integer number (15700288571646).

Almost surely, 2^{243251242224143} is an apocalyptic number.

243251242224143 is a deficient number, since it is larger than the sum of its proper divisors (7953374922193).

243251242224143 is a wasteful number, since it uses less digits than its factorization.

243251242224143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126158474.

The product of its digits is 737280, while the sum is 41.

Adding to 243251242224143 its reverse (341422242152342), we get a palindrome (584673484376485).

The spelling of 243251242224143 in words is "two hundred forty-three trillion, two hundred fifty-one billion, two hundred forty-two million, two hundred twenty-four thousand, one hundred forty-three".