231011243 has 8 divisors (see below), whose sum is σ = 234720768. Its totient is φ = 227309544.

The previous prime is 231011237. The next prime is 231011257. The reversal of 231011243 is 342110132.

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 231011243 - 2⁴ = 231011227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231011203) 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 7 ways as a sum of consecutive naturals, for example, 94130 + ... + 96552.

It is an arithmetic number, because the mean of its divisors is an integer number (29340096).

Almost surely, 2^231011243 is an apocalyptic number.

231011243 is a deficient number, since it is larger than the sum of its proper divisors (3709525).

231011243 is a wasteful number, since it uses less digits than its factorization.

231011243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3913.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 231011243 is about 15199.0540166156. The cubic root of 231011243 is about 613.5891983089.

Adding to 231011243 its reverse (342110132), we get a palindrome (573121375).

The spelling of 231011243 in words is "two hundred thirty-one million, eleven thousand, two hundred forty-three".