231033212000 has 96 divisors (see below), whose sum is σ = 568963833984. Its totient is φ = 92199168000.

The previous prime is 231033211999. The next prime is 231033212023. The reversal of 231033212000 is 212330132.

It is a self number, because there is not a number n which added to its sum of digits gives 231033212000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1665305 + ... + 1798695.

It is an arithmetic number, because the mean of its divisors is an integer number (5926706604).

Almost surely, 2^231033212000 is an apocalyptic number.

231033212000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231033212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284481916992).

231033212000 is an abundant number, since it is smaller than the sum of its proper divisors (337930621984).

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

231033212000 is a wasteful number, since it uses less digits than its factorization.

231033212000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133849 (or 133831 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 231033212000 its reverse (212330132), we get a palindrome (231245542132).

The spelling of 231033212000 in words is "two hundred thirty-one billion, thirty-three million, two hundred twelve thousand".