231301231212 has 24 divisors (see below), whose sum is σ = 539714355712. Its totient is φ = 77098770000.

The previous prime is 231301231207. The next prime is 231301231219. The reversal of 231301231212 is 212132103132.

231301231212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (231301231219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471837 + ... + 827787.

Almost surely, 2^231301231212 is an apocalyptic number.

It is an amenable number.

231301231212 is an abundant number, since it is smaller than the sum of its proper divisors (308413124500).

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

231301231212 is a wasteful number, since it uses less digits than its factorization.

231301231212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410109 (or 410107 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 231301231212 its reverse (212132103132), we get a palindrome (443433334344).

The spelling of 231301231212 in words is "two hundred thirty-one billion, three hundred one million, two hundred thirty-one thousand, two hundred twelve".