231531500241 has 12 divisors (see below), whose sum is σ = 348975015168. Its totient is φ = 147643275384.

The previous prime is 231531500197. The next prime is 231531500257. The reversal of 231531500241 is 142005135132.

231531500241 is a `hidden beast` number, since 2 + 3 + 153 + 1 + 500 + 2 + 4 + 1 = 666.

231531500241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231531500241 - 2⁹ = 231531499729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231531500281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 559254625 + ... + 559255038.

It is an arithmetic number, because the mean of its divisors is an integer number (29081251264).

Almost surely, 2^231531500241 is an apocalyptic number.

It is an amenable number.

231531500241 is a deficient number, since it is larger than the sum of its proper divisors (117443514927).

231531500241 is a wasteful number, since it uses less digits than its factorization.

231531500241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118509692 (or 1118509689 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 231531500241 its reverse (142005135132), we get a palindrome (373536635373).

The spelling of 231531500241 in words is "two hundred thirty-one billion, five hundred thirty-one million, five hundred thousand, two hundred forty-one".