231230313 has 12 divisors (see below), whose sum is σ = 334251060. Its totient is φ = 154037376.

The previous prime is 231230303. The next prime is 231230341. The reversal of 231230313 is 313032132.

231230313 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 161874729 + 69355584 = 12723^2 + 8328^2 .

It is not a de Polignac number, because 231230313 - 2¹⁰ = 231229289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231230303) 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, 3933 + ... + 21861.

It is an arithmetic number, because the mean of its divisors is an integer number (27854255).

Almost surely, 2^231230313 is an apocalyptic number.

It is an amenable number.

231230313 is a deficient number, since it is larger than the sum of its proper divisors (103020747).

231230313 is a wasteful number, since it uses less digits than its factorization.

231230313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19368 (or 19365 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 231230313 is about 15206.2590073956. The cubic root of 231230313 is about 613.7830943809.

Adding to 231230313 its reverse (313032132), we get a palindrome (544262445).

The spelling of 231230313 in words is "two hundred thirty-one million, two hundred thirty thousand, three hundred thirteen".