231330211000 has 128 divisors (see below), whose sum is σ = 627119026560. Its totient is φ = 78226560000.

The previous prime is 231330210989. The next prime is 231330211009. The reversal of 231330211000 is 112033132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231330211009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 284650 + ... + 737350.

It is an arithmetic number, because the mean of its divisors is an integer number (4899367395).

Almost surely, 2^231330211000 is an apocalyptic number.

231330211000 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 231330211000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313559513280).

231330211000 is an abundant number, since it is smaller than the sum of its proper divisors (395788815560).

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

231330211000 is a wasteful number, since it uses less digits than its factorization.

231330211000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452802 (or 452788 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 231330211000 its reverse (112033132), we get a palindrome (231442244132).

The spelling of 231330211000 in words is "two hundred thirty-one billion, three hundred thirty million, two hundred eleven thousand".