231235200000 has 1584 divisors, whose sum is σ = 1011153282048. Its totient is φ = 49766400000.

The previous prime is 231235199999. The next prime is 231235200011. The reversal of 231235200000 is 2532132.

231235200000 is a `hidden beast` number, since 2 + 312 + 352 + 0 + 0 + 0 + 0 + 0 = 666.

231235200000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 6249599982 + ... + 6249600018.

Almost surely, 2^231235200000 is an apocalyptic number.

231235200000 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 231235200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (505576641024).

231235200000 is an abundant number, since it is smaller than the sum of its proper divisors (779918082048).

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

231235200000 is an equidigital number, since it uses as much as digits as its factorization.

231235200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 85 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

Adding to 231235200000 its reverse (2532132), we get a palindrome (231237732132).

The spelling of 231235200000 in words is "two hundred thirty-one billion, two hundred thirty-five million, two hundred thousand".