231301133212 has 6 divisors (see below), whose sum is σ = 404776983128. Its totient is φ = 115650566604.

The previous prime is 231301133201. The next prime is 231301133227. The reversal of 231301133212 is 212331103132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28912641648 + ... + 28912641655.

Almost surely, 2^231301133212 is an apocalyptic number.

It is an amenable number.

231301133212 is a deficient number, since it is larger than the sum of its proper divisors (173475849916).

231301133212 is a wasteful number, since it uses less digits than its factorization.

231301133212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57825283307 (or 57825283305 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 231301133212 its reverse (212331103132), we get a palindrome (443632236344).

The spelling of 231301133212 in words is "two hundred thirty-one billion, three hundred one million, one hundred thirty-three thousand, two hundred twelve".