231321333212 has 6 divisors (see below), whose sum is σ = 404812333128. Its totient is φ = 115660666604.

The previous prime is 231321333211. The next prime is 231321333223. The reversal of 231321333212 is 212333123132.

231321333212 is digitally balanced in base 3, 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 (231321333211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28915166648 + ... + 28915166655.

It is an arithmetic number, because the mean of its divisors is an integer number (67468722188).

Almost surely, 2^231321333212 is an apocalyptic number.

It is an amenable number.

231321333212 is a deficient number, since it is larger than the sum of its proper divisors (173490999916).

231321333212 is a wasteful number, since it uses less digits than its factorization.

231321333212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57830333307 (or 57830333305 counting only the distinct ones).

The product of its digits is 3888, while the sum is 26.

Adding to 231321333212 its reverse (212333123132), we get a palindrome (443654456344).

The spelling of 231321333212 in words is "two hundred thirty-one billion, three hundred twenty-one million, three hundred thirty-three thousand, two hundred twelve".