231133222000 has 80 divisors (see below), whose sum is σ = 559234420992. Its totient is φ = 92394681600.

The previous prime is 231133221989. The next prime is 231133222007. The reversal of 231133222000 is 222331132.

231133222000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231133222007) by changing a digit.

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, 3190177 + ... + 3261823.

Almost surely, 2^231133222000 is an apocalyptic number.

231133222000 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 231133222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279617210496).

231133222000 is an abundant number, since it is smaller than the sum of its proper divisors (328101198992).

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

231133222000 is a wasteful number, since it uses less digits than its factorization.

231133222000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73283 (or 73267 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 231133222000 its reverse (222331132), we get a palindrome (231355553132).

It can be divided in two parts, 2311332 and 22000, that added together give a palindrome (2333332).

The spelling of 231133222000 in words is "two hundred thirty-one billion, one hundred thirty-three million, two hundred twenty-two thousand".