243110043421 has 8 divisors (see below), whose sum is σ = 279503763840. Its totient is φ = 207132251568.

The previous prime is 243110043419. The next prime is 243110043427. The reversal of 243110043421 is 124340011342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243110043421 - 2¹ = 243110043419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243110043427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103980886 + ... + 103983223.

It is an arithmetic number, because the mean of its divisors is an integer number (34937970480).

Almost surely, 2^243110043421 is an apocalyptic number.

It is an amenable number.

243110043421 is a deficient number, since it is larger than the sum of its proper divisors (36393720419).

243110043421 is a wasteful number, since it uses less digits than its factorization.

243110043421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207964283.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 243110043421 its reverse (124340011342), we get a palindrome (367450054763).

It can be divided in two parts, 243110043 and 421, that added together give a square (243110464 = 15592²).

The spelling of 243110043421 in words is "two hundred forty-three billion, one hundred ten million, forty-three thousand, four hundred twenty-one".