231231300 has 36 divisors (see below), whose sum is σ = 669030096. Its totient is φ = 61661600.

The previous prime is 231231293. The next prime is 231231323. The reversal of 231231300 is 3132132.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 231231300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 385086 + ... + 385685.

Almost surely, 2^231231300 is an apocalyptic number.

231231300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231231300 is an abundant number, since it is smaller than the sum of its proper divisors (437798796).

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

231231300 is a wasteful number, since it uses less digits than its factorization.

231231300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770788 (or 770781 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 231231300 is about 15206.2914611025. The cubic root of 231231300 is about 613.7839676849.

Adding to 231231300 its reverse (3132132), we get a palindrome (234363432).

The spelling of 231231300 in words is "two hundred thirty-one million, two hundred thirty-one thousand, three hundred".