231032205 has 12 divisors (see below), whose sum is σ = 400455900. Its totient is φ = 123217152.

The previous prime is 231032189. The next prime is 231032209. The reversal of 231032205 is 502230132.

231032205 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 167495364 + 63536841 = 12942^2 + 7971^2 .

It is not a de Polignac number, because 231032205 - 2⁴ = 231032189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231032209) 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, 2566980 + ... + 2567069.

It is an arithmetic number, because the mean of its divisors is an integer number (33371325).

Almost surely, 2^231032205 is an apocalyptic number.

It is an amenable number.

231032205 is a deficient number, since it is larger than the sum of its proper divisors (169423695).

231032205 is a wasteful number, since it uses less digits than its factorization.

231032205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5134060 (or 5134057 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 231032205 is about 15199.7435833635. The cubic root of 231032205 is about 613.6077568108.

Adding to 231032205 its reverse (502230132), we get a palindrome (733262337).

The spelling of 231032205 in words is "two hundred thirty-one million, thirty-two thousand, two hundred five".