243405414231 has 64 divisors (see below), whose sum is σ = 411588864000. Its totient is φ = 124667744256.

The previous prime is 243405414223. The next prime is 243405414271. The reversal of 243405414231 is 132414504342.

It is not a de Polignac number, because 243405414231 - 2³ = 243405414223 is a prime.

It is a super-2 number, since 2×243405414231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243405414192 and 243405414201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243405414211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1815595 + ... + 1945043.

It is an arithmetic number, because the mean of its divisors is an integer number (6431076000).

Almost surely, 2^243405414231 is an apocalyptic number.

243405414231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

243405414231 is a deficient number, since it is larger than the sum of its proper divisors (168183449769).

243405414231 is a wasteful number, since it uses less digits than its factorization.

243405414231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129728.

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 243405414231 its reverse (132414504342), we get a palindrome (375819918573).

The spelling of 243405414231 in words is "two hundred forty-three billion, four hundred five million, four hundred fourteen thousand, two hundred thirty-one".