243113444501 has 8 divisors (see below), whose sum is σ = 257707767960. Its totient is φ = 228551735808.

The previous prime is 243113444479. The next prime is 243113444521. The reversal of 243113444501 is 105444311342.

It can be written as a sum of positive squares in 4 ways, for example, as 88408102225 + 154705342276 = 297335^2 + 393326^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243113444501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243113444521) 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 7 ways as a sum of consecutive naturals, for example, 8138336 + ... + 8168153.

It is an arithmetic number, because the mean of its divisors is an integer number (32213470995).

Almost surely, 2^243113444501 is an apocalyptic number.

It is an amenable number.

243113444501 is a deficient number, since it is larger than the sum of its proper divisors (14594323459).

243113444501 is a wasteful number, since it uses less digits than its factorization.

243113444501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16307383.

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 243113444501 its reverse (105444311342), we get a palindrome (348557755843).

The spelling of 243113444501 in words is "two hundred forty-three billion, one hundred thirteen million, four hundred forty-four thousand, five hundred one".