243410021231 has 16 divisors (see below), whose sum is σ = 292161592800. Its totient is φ = 200339371008.

The previous prime is 243410021221. The next prime is 243410021233. The reversal of 243410021231 is 132120014342.

It is a cyclic number.

It is not a de Polignac number, because 243410021231 - 2¹⁰ = 243410020207 is a prime.

It is a super-2 number, since 2×243410021231² (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 = 243410021197 and 243410021206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243410021233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28980086 + ... + 28988483.

It is an arithmetic number, because the mean of its divisors is an integer number (18260099550).

Almost surely, 2^243410021231 is an apocalyptic number.

243410021231 is a deficient number, since it is larger than the sum of its proper divisors (48751571569).

243410021231 is a wasteful number, since it uses less digits than its factorization.

243410021231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57968618.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 243410021231 its reverse (132120014342), we get a palindrome (375530035573).

The spelling of 243410021231 in words is "two hundred forty-three billion, four hundred ten million, twenty-one thousand, two hundred thirty-one".