231016205 has 16 divisors (see below), whose sum is σ = 318159360. Its totient is φ = 157742592.

The previous prime is 231016199. The next prime is 231016207. The reversal of 231016205 is 502610132.

It is not a de Polignac number, because 231016205 - 2⁸ = 231015949 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231016207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5444 + ... + 22173.

It is an arithmetic number, because the mean of its divisors is an integer number (19884960).

Almost surely, 2^231016205 is an apocalyptic number.

It is an amenable number.

231016205 is a deficient number, since it is larger than the sum of its proper divisors (87143155).

231016205 is a wasteful number, since it uses less digits than its factorization.

231016205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27868.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 231016205 is about 15199.2172495823. The cubic root of 231016205 is about 613.5935914686.

Adding to 231016205 its reverse (502610132), we get a palindrome (733626337).

The spelling of 231016205 in words is "two hundred thirty-one million, sixteen thousand, two hundred five".