231243024 has 40 divisors (see below), whose sum is σ = 605800512. Its totient is φ = 75994240.

The previous prime is 231243017. The next prime is 231243059. The reversal of 231243024 is 420342132.

It is a super-2 number, since 2×231243024² = 106946672297329152, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 30519 + ... + 37334.

Almost surely, 2^231243024 is an apocalyptic number.

231243024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

231243024 is an abundant number, since it is smaller than the sum of its proper divisors (374557488).

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

231243024 is a wasteful number, since it uses less digits than its factorization.

231243024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67935 (or 67929 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 231243024 is about 15206.6769545486. The cubic root of 231243024 is about 613.7943409657.

Adding to 231243024 its reverse (420342132), we get a palindrome (651585156).

The spelling of 231243024 in words is "two hundred thirty-one million, two hundred forty-three thousand, twenty-four".