231230240 has 48 divisors (see below), whose sum is σ = 563915520. Its totient is φ = 89506560.

The previous prime is 231230213. The next prime is 231230267. The reversal of 231230240 is 42032132.

It is an interprime number because it is at equal distance from previous prime (231230213) and next prime (231230267).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18350 + ... + 28269.

It is an arithmetic number, because the mean of its divisors is an integer number (11748240).

Almost surely, 2^231230240 is an apocalyptic number.

231230240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231230240 is an abundant number, since it is smaller than the sum of its proper divisors (332685280).

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

231230240 is a wasteful number, since it uses less digits than its factorization.

231230240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46665 (or 46657 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 231230240 is about 15206.2566070680. The cubic root of 231230240 is about 613.7830297900.

Adding to 231230240 its reverse (42032132), we get a palindrome (273262372).

The spelling of 231230240 in words is "two hundred thirty-one million, two hundred thirty thousand, two hundred forty".