243423440112431 has 8 divisors (see below), whose sum is σ = 243900669678000. Its totient is φ = 242946623557440.

The previous prime is 243423440112383. The next prime is 243423440112443. The reversal of 243423440112431 is 134211044324342.

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-243423440112431 is a prime.

It is a super-2 number, since 2×243423440112431² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243423440111431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102072701 + ... + 104430278.

It is an arithmetic number, because the mean of its divisors is an integer number (30487583709750).

Almost surely, 2^{243423440112431} is an apocalyptic number.

243423440112431 is a deficient number, since it is larger than the sum of its proper divisors (477229565569).

243423440112431 is a wasteful number, since it uses less digits than its factorization.

243423440112431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206505289.

The product of its (nonzero) digits is 221184, while the sum is 38.

Adding to 243423440112431 its reverse (134211044324342), we get a palindrome (377634484436773).

The spelling of 243423440112431 in words is "two hundred forty-three trillion, four hundred twenty-three billion, four hundred forty million, one hundred twelve thousand, four hundred thirty-one".