231323265 has 12 divisors (see below), whose sum is σ = 400960404. Its totient is φ = 123372384.

The previous prime is 231323231. The next prime is 231323269. The reversal of 231323265 is 562323132.

231323265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 118984464 + 112338801 = 10908^2 + 10599^2 .

It is not a de Polignac number, because 231323265 - 2⁶ = 231323201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231323269) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2570214 + ... + 2570303.

It is an arithmetic number, because the mean of its divisors is an integer number (33413367).

Almost surely, 2^231323265 is an apocalyptic number.

It is an amenable number.

231323265 is a deficient number, since it is larger than the sum of its proper divisors (169637139).

231323265 is a wasteful number, since it uses less digits than its factorization.

231323265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5140528 (or 5140525 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 231323265 is about 15209.3150733358. The cubic root of 231323265 is about 613.8653280096.

Adding to 231323265 its reverse (562323132), we get a palindrome (793646397).

The spelling of 231323265 in words is "two hundred thirty-one million, three hundred twenty-three thousand, two hundred sixty-five".