231322210000 has 200 divisors, whose sum is σ = 652149045504. Its totient is φ = 77812800000.

The previous prime is 231322209959. The next prime is 231322210001. The reversal of 231322210000 is 12223132.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231322210001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3678825 + ... + 3741175.

Almost surely, 2^231322210000 is an apocalyptic number.

231322210000 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 231322210000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326074522752).

231322210000 is an abundant number, since it is smaller than the sum of its proper divisors (420826835504).

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

231322210000 is an equidigital number, since it uses as much as digits as its factorization.

231322210000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62439 (or 62418 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 231322210000 its reverse (12223132), we get a palindrome (231334433132).

The spelling of 231322210000 in words is "two hundred thirty-one billion, three hundred twenty-two million, two hundred ten thousand".