243241140324031 has 4 divisors (see below), whose sum is σ = 243242596005192. Its totient is φ = 243239684642872.

The previous prime is 243241140323999. The next prime is 243241140324041. The reversal of 243241140324031 is 130423041142342.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 243241140324031 - 2⁵ = 243241140323999 is a prime.

It is a super-2 number, since 2×243241140324031² (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 (243241140324041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 727589905 + ... + 727924138.

It is an arithmetic number, because the mean of its divisors is an integer number (60810649001298).

Almost surely, 2^{243241140324031} is an apocalyptic number.

243241140324031 is a deficient number, since it is larger than the sum of its proper divisors (1455681161).

243241140324031 is a wasteful number, since it uses less digits than its factorization.

243241140324031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455681160.

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 243241140324031 its reverse (130423041142342), we get a palindrome (373664181466373).

The spelling of 243241140324031 in words is "two hundred forty-three trillion, two hundred forty-one billion, one hundred forty million, three hundred twenty-four thousand, thirty-one".