231331332123 has 48 divisors (see below), whose sum is σ = 366215709600. Its totient is φ = 140061680640.

The previous prime is 231331332109. The next prime is 231331332131. The reversal of 231331332123 is 321233133132.

231331332123 is a `hidden beast` number, since 2 + 3 + 1 + 3 + 313 + 321 + 23 = 666.

It is not a de Polignac number, because 231331332123 - 2⁴ = 231331332107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231331332143) 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 47 ways as a sum of consecutive naturals, for example, 8021013 + ... + 8049801.

It is an arithmetic number, because the mean of its divisors is an integer number (7629493950).

Almost surely, 2^231331332123 is an apocalyptic number.

231331332123 is a deficient number, since it is larger than the sum of its proper divisors (134884377477).

231331332123 is a wasteful number, since it uses less digits than its factorization.

231331332123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30652 (or 30649 counting only the distinct ones).

The product of its digits is 5832, while the sum is 27.

Adding to 231331332123 its reverse (321233133132), we get a palindrome (552564465255).

The spelling of 231331332123 in words is "two hundred thirty-one billion, three hundred thirty-one million, three hundred thirty-two thousand, one hundred twenty-three".