243233000231 has 24 divisors (see below), whose sum is σ = 279100119984. Its totient is φ = 210676055040.

The previous prime is 243233000209. The next prime is 243233000233. The reversal of 243233000231 is 132000332342.

It is not a de Polignac number, because 243233000231 - 2⁶ = 243233000167 is a prime.

It is a super-2 number, since 2×243233000231² (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 = 243233000197 and 243233000206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243233000233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1145771 + ... + 1341363.

It is an arithmetic number, because the mean of its divisors is an integer number (11629171666).

Almost surely, 2^243233000231 is an apocalyptic number.

243233000231 is a deficient number, since it is larger than the sum of its proper divisors (35867119753).

243233000231 is a wasteful number, since it uses less digits than its factorization.

243233000231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195971 (or 195954 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 243233000231 its reverse (132000332342), we get a palindrome (375233332573).

The spelling of 243233000231 in words is "two hundred forty-three billion, two hundred thirty-three million, two hundred thirty-one", and thus it is an aban number.