231143412312 has 48 divisors (see below), whose sum is σ = 628820687040. Its totient is φ = 76702292928.

The previous prime is 231143412289. The next prime is 231143412319. The reversal of 231143412312 is 213214341132.

231143412312 is a `hidden beast` number, since 2 + 3 + 1 + 1 + 4 + 341 + 2 + 312 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231143412319) 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 11 ways as a sum of consecutive naturals, for example, 7181983 + ... + 7214094.

It is an arithmetic number, because the mean of its divisors is an integer number (13100430980).

Almost surely, 2^231143412312 is an apocalyptic number.

It is an amenable number.

231143412312 is an abundant number, since it is smaller than the sum of its proper divisors (397677274728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231143412312 is a wasteful number, since it uses less digits than its factorization.

231143412312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14396312 (or 14396305 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 231143412312 its reverse (213214341132), we get a palindrome (444357753444).

The spelling of 231143412312 in words is "two hundred thirty-one billion, one hundred forty-three million, four hundred twelve thousand, three hundred twelve".