243132103231 has 4 divisors (see below), whose sum is σ = 248305126752. Its totient is φ = 237959079712.

The previous prime is 243132103223. The next prime is 243132103243. The reversal of 243132103231 is 132301231342.

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 243132103231 - 2³ = 243132103223 is a prime.

It is a super-2 number, since 2×243132103231² (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 = 243132103196 and 243132103205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243132103631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2586511690 + ... + 2586511783.

It is an arithmetic number, because the mean of its divisors is an integer number (62076281688).

Almost surely, 2^243132103231 is an apocalyptic number.

243132103231 is a deficient number, since it is larger than the sum of its proper divisors (5173023521).

243132103231 is an equidigital number, since it uses as much as digits as its factorization.

243132103231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5173023520.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 243132103231 its reverse (132301231342), we get a palindrome (375433334573).

The spelling of 243132103231 in words is "two hundred forty-three billion, one hundred thirty-two million, one hundred three thousand, two hundred thirty-one".