231321300212 has 48 divisors (see below), whose sum is σ = 418276039104. Its totient is φ = 111864480000.

The previous prime is 231321300179. The next prime is 231321300227. The reversal of 231321300212 is 212003123132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23477087 + ... + 23486937.

It is an arithmetic number, because the mean of its divisors is an integer number (8714084148).

Almost surely, 2^231321300212 is an apocalyptic number.

It is an amenable number.

231321300212 is a deficient number, since it is larger than the sum of its proper divisors (186954738892).

231321300212 is a wasteful number, since it uses less digits than its factorization.

231321300212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11120 (or 11118 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 231321300212 its reverse (212003123132), we get a palindrome (443324423344).

The spelling of 231321300212 in words is "two hundred thirty-one billion, three hundred twenty-one million, three hundred thousand, two hundred twelve".