243331242431 has 8 divisors (see below), whose sum is σ = 245071434384. Its totient is φ = 241597168000.

The previous prime is 243331242403. The next prime is 243331242433. The reversal of 243331242431 is 134242133342.

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 243331242431 - 2¹⁸ = 243330980287 is a prime.

It is a super-2 number, since 2×243331242431² (a number of 24 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 (243331242433) 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, 1449530 + ... + 1608663.

It is an arithmetic number, because the mean of its divisors is an integer number (30633929298).

Almost surely, 2^243331242431 is an apocalyptic number.

243331242431 is a deficient number, since it is larger than the sum of its proper divisors (1740191953).

243331242431 is a wasteful number, since it uses less digits than its factorization.

243331242431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3058761.

The product of its digits is 41472, while the sum is 32.

Adding to 243331242431 its reverse (134242133342), we get a palindrome (377573375773).

The spelling of 243331242431 in words is "two hundred forty-three billion, three hundred thirty-one million, two hundred forty-two thousand, four hundred thirty-one".