243004324431 has 8 divisors (see below), whose sum is σ = 353460835584. Its totient is φ = 147275348120.

The previous prime is 243004324403. The next prime is 243004324457. The reversal of 243004324431 is 134423400342.

It is a happy number.

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 243004324431 - 2¹³ = 243004316239 is a prime.

It is a super-2 number, since 2×243004324431² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243004324931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3681883671 + ... + 3681883736.

It is an arithmetic number, because the mean of its divisors is an integer number (44182604448).

Almost surely, 2^243004324431 is an apocalyptic number.

243004324431 is a deficient number, since it is larger than the sum of its proper divisors (110456511153).

243004324431 is a wasteful number, since it uses less digits than its factorization.

243004324431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7363767421.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 243004324431 its reverse (134423400342), we get a palindrome (377427724773).

The spelling of 243004324431 in words is "two hundred forty-three billion, four million, three hundred twenty-four thousand, four hundred thirty-one".