204231105 has 32 divisors (see below), whose sum is σ = 391009920. Its totient is φ = 100543680.

The previous prime is 204231091. The next prime is 204231109. The reversal of 204231105 is 501132402.

It is not a de Polignac number, because 204231105 - 2⁵ = 204231073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204231109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56431 + ... + 59940.

It is an arithmetic number, because the mean of its divisors is an integer number (12219060).

Almost surely, 2^204231105 is an apocalyptic number.

It is an amenable number.

204231105 is a deficient number, since it is larger than the sum of its proper divisors (186778815).

204231105 is a wasteful number, since it uses less digits than its factorization.

204231105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116398 (or 116392 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 204231105 is about 14290.9448602953. The cubic root of 204231105 is about 588.8987453290.

Adding to 204231105 its reverse (501132402), we get a palindrome (705363507).

It can be divided in two parts, 20423 and 1105, that added together give a triangular number (21528 = T₂₀₇).

The spelling of 204231105 in words is "two hundred four million, two hundred thirty-one thousand, one hundred five".