231234320000 has 80 divisors (see below), whose sum is σ = 575643586650. Its totient is φ = 92493696000.

The previous prime is 231234319933. The next prime is 231234320041. The reversal of 231234320000 is 23432132.

231234320000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 44036183104 + 187198136896 = 209848^2 + 432664^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1365215 + ... + 1525214.

Almost surely, 2^231234320000 is an apocalyptic number.

231234320000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231234320000 is an abundant number, since it is smaller than the sum of its proper divisors (344409266650).

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

231234320000 is an frugal number, since it uses more digits than its factorization.

231234320000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2890463 (or 2890436 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 231234320000 its reverse (23432132), we get a palindrome (231257752132).

The spelling of 231234320000 in words is "two hundred thirty-one billion, two hundred thirty-four million, three hundred twenty thousand".