243420341231 has 8 divisors (see below), whose sum is σ = 258796360800. Its totient is φ = 228443698912.

The previous prime is 243420341209. The next prime is 243420341237. The reversal of 243420341231 is 132143024342.

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 243420341231 - 2¹⁸ = 243420079087 is a prime.

It is a super-2 number, since 2×243420341231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243420341194 and 243420341203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243420341237) 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, 99843056 + ... + 99845493.

It is an arithmetic number, because the mean of its divisors is an integer number (32349545100).

Almost surely, 2^243420341231 is an apocalyptic number.

243420341231 is a deficient number, since it is larger than the sum of its proper divisors (15376019569).

243420341231 is a wasteful number, since it uses less digits than its factorization.

243420341231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199688625.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 243420341231 its reverse (132143024342), we get a palindrome (375563365573).

The spelling of 243420341231 in words is "two hundred forty-three billion, four hundred twenty million, three hundred forty-one thousand, two hundred thirty-one".