231321321230012 has 24 divisors (see below), whose sum is σ = 437609331911136. Its totient is φ = 106357741138368.

The previous prime is 231321321230011. The next prime is 231321321230063. The reversal of 231321321230012 is 210032123123132.

231321321230012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231321321230011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8457185843 + ... + 8457213194.

It is an arithmetic number, because the mean of its divisors is an integer number (18233722162964).

Almost surely, 2^{231321321230012} is an apocalyptic number.

It is an amenable number.

231321321230012 is a deficient number, since it is larger than the sum of its proper divisors (206288010681124).

231321321230012 is a wasteful number, since it uses less digits than its factorization.

231321321230012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16914399317 (or 16914399315 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 231321321230012 its reverse (210032123123132), we get a palindrome (441353444353144).

The spelling of 231321321230012 in words is "two hundred thirty-one trillion, three hundred twenty-one billion, three hundred twenty-one million, two hundred thirty thousand, twelve".