231123601247 has 12 divisors (see below), whose sum is σ = 290337086928. Its totient is φ = 180096312000.

The previous prime is 231123601193. The next prime is 231123601249. The reversal of 231123601247 is 742106321132.

231123601247 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 231123601247 - 2³² = 226828633951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231123601249) 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, 136435754 + ... + 136437447.

It is an arithmetic number, because the mean of its divisors is an integer number (24194757244).

Almost surely, 2^231123601247 is an apocalyptic number.

231123601247 is a deficient number, since it is larger than the sum of its proper divisors (59213485681).

231123601247 is a wasteful number, since it uses less digits than its factorization.

231123601247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272873230 (or 272873219 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

Adding to 231123601247 its reverse (742106321132), we get a palindrome (973229922379).

The spelling of 231123601247 in words is "two hundred thirty-one billion, one hundred twenty-three million, six hundred one thousand, two hundred forty-seven".