231310252 has 12 divisors (see below), whose sum is σ = 407748600. Its totient is φ = 114810656.

The previous prime is 231310243. The next prime is 231310291. The reversal of 231310252 is 252013132.

231310252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210502 + ... + 211597.

It is an arithmetic number, because the mean of its divisors is an integer number (33979050).

Almost surely, 2^231310252 is an apocalyptic number.

It is an amenable number.

231310252 is a deficient number, since it is larger than the sum of its proper divisors (176438348).

231310252 is a wasteful number, since it uses less digits than its factorization.

231310252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422240 (or 422238 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 231310252 is about 15208.8872702772. The cubic root of 231310252 is about 613.8538168756.

Adding to 231310252 its reverse (252013132), we get a palindrome (483323384).

The spelling of 231310252 in words is "two hundred thirty-one million, three hundred ten thousand, two hundred fifty-two".