243123012443 has 8 divisors (see below), whose sum is σ = 246072590400. Its totient is φ = 240173920008.

The previous prime is 243123012427. The next prime is 243123012463. The reversal of 243123012443 is 344210321342.

243123012443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 243123012443 - 2⁴ = 243123012427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243123012463) 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 7 ways as a sum of consecutive naturals, for example, 942368 + ... + 1172306.

It is an arithmetic number, because the mean of its divisors is an integer number (30759073800).

Almost surely, 2^243123012443 is an apocalyptic number.

243123012443 is a deficient number, since it is larger than the sum of its proper divisors (2949577957).

243123012443 is a wasteful number, since it uses less digits than its factorization.

243123012443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242761.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 243123012443 its reverse (344210321342), we get a palindrome (587333333785).

The spelling of 243123012443 in words is "two hundred forty-three billion, one hundred twenty-three million, twelve thousand, four hundred forty-three".