243254452343 has 16 divisors (see below), whose sum is σ = 284862527040. Its totient is φ = 203363481600.

The previous prime is 243254452339. The next prime is 243254452349. The reversal of 243254452343 is 343254452342.

It is a cyclic number.

It is not a de Polignac number, because 243254452343 - 2² = 243254452339 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a self number, because there is not a number n which added to its sum of digits gives 243254452343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243254452349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 969263 + ... + 1194143.

It is an arithmetic number, because the mean of its divisors is an integer number (17803907940).

Almost surely, 2^243254452343 is an apocalyptic number.

243254452343 is a deficient number, since it is larger than the sum of its proper divisors (41608074697).

243254452343 is a wasteful number, since it uses less digits than its factorization.

243254452343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228698.

The product of its digits is 1382400, while the sum is 41.

Subtracting 243254452343 from its reverse (343254452342), we obtain a palindrome (99999999999).

The spelling of 243254452343 in words is "two hundred forty-three billion, two hundred fifty-four million, four hundred fifty-two thousand, three hundred forty-three".