231024512 has 64 divisors (see below), whose sum is σ = 485805600. Its totient is φ = 109215744.

The previous prime is 231024511. The next prime is 231024517. The reversal of 231024512 is 215420132.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231024511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285164 + ... + 285972.

Almost surely, 2^231024512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231024512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242902800).

231024512 is an abundant number, since it is smaller than the sum of its proper divisors (254781088).

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

231024512 is an equidigital number, since it uses as much as digits as its factorization.

231024512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943 (or 931 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 231024512 is about 15199.4905177772. The cubic root of 231024512 is about 613.6009460188.

Adding to 231024512 its reverse (215420132), we get a palindrome (446444644).

The spelling of 231024512 in words is "two hundred thirty-one million, twenty-four thousand, five hundred twelve".