231313312312 has 32 divisors (see below), whose sum is σ = 447736222080. Its totient is φ = 111917537280.

The previous prime is 231313312289. The next prime is 231313312313. The reversal of 231313312312 is 213213313132.

231313312312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231313312313) 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 7 ways as a sum of consecutive naturals, for example, 4576008 + ... + 4626280.

It is an arithmetic number, because the mean of its divisors is an integer number (13991756940).

Almost surely, 2^231313312312 is an apocalyptic number.

It is an amenable number.

231313312312 is a deficient number, since it is larger than the sum of its proper divisors (216422909768).

231313312312 is a wasteful number, since it uses less digits than its factorization.

231313312312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68863 (or 68859 counting only the distinct ones).

The product of its digits is 1944, while the sum is 25.

Adding to 231313312312 its reverse (213213313132), we get a palindrome (444526625444).

The spelling of 231313312312 in words is "two hundred thirty-one billion, three hundred thirteen million, three hundred twelve thousand, three hundred twelve".