231321034212 has 24 divisors (see below), whose sum is σ = 539786999136. Its totient is φ = 77101594368.

The previous prime is 231321034201. The next prime is 231321034213. The reversal of 231321034212 is 212430123132.

It is not an unprimeable number, because it can be changed into a prime (231321034213) 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, 497293 + ... + 842580.

It is an arithmetic number, because the mean of its divisors is an integer number (22491124964).

Almost surely, 2^231321034212 is an apocalyptic number.

It is an amenable number.

231321034212 is an abundant number, since it is smaller than the sum of its proper divisors (308465964924).

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

231321034212 is a wasteful number, since it uses less digits than its factorization.

231321034212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354267 (or 1354265 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 231321034212 its reverse (212430123132), we get a palindrome (443751157344).

The spelling of 231321034212 in words is "two hundred thirty-one billion, three hundred twenty-one million, thirty-four thousand, two hundred twelve".