231342512 has 20 divisors (see below), whose sum is σ = 463683120. Its totient is φ = 111682368.

The previous prime is 231342493. The next prime is 231342521. The reversal of 231342512 is 215243132.

231342512 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 248828 + ... + 249755.

It is an arithmetic number, because the mean of its divisors is an integer number (23184156).

Almost surely, 2^231342512 is an apocalyptic number.

It is an amenable number.

231342512 is an abundant number, since it is smaller than the sum of its proper divisors (232340608).

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

231342512 is a wasteful number, since it uses less digits than its factorization.

231342512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498620 (or 498614 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 231342512 is about 15209.9477974121. The cubic root of 231342512 is about 613.8823528692.

Adding to 231342512 its reverse (215243132), we get a palindrome (446585644).

The spelling of 231342512 in words is "two hundred thirty-one million, three hundred forty-two thousand, five hundred twelve".