231100243 has 8 divisors (see below), whose sum is σ = 255661056. Its totient is φ = 207131400.

The previous prime is 231100241. The next prime is 231100279. The reversal of 231100243 is 342001132.

It is a happy number.

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 231100243 - 2¹ = 231100241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231100241) 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, 147171 + ... + 148732.

It is an arithmetic number, because the mean of its divisors is an integer number (31957632).

Almost surely, 2^231100243 is an apocalyptic number.

231100243 is a deficient number, since it is larger than the sum of its proper divisors (24560813).

231100243 is a wasteful number, since it uses less digits than its factorization.

231100243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295985.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 231100243 is about 15201.9815484693. The cubic root of 231100243 is about 613.6679858555.

Adding to 231100243 its reverse (342001132), we get a palindrome (573101375).

The spelling of 231100243 in words is "two hundred thirty-one million, one hundred thousand, two hundred forty-three".