204113122 has 8 divisors (see below), whose sum is σ = 309201372. Its totient is φ = 101046000.

The previous prime is 204113113. The next prime is 204113153. The reversal of 204113122 is 221311402.

It can be written as a sum of positive squares in 2 ways, for example, as 203091001 + 1022121 = 14251^2 + 1011^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 204113096 and 204113105.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 505029 + ... + 505432.

Almost surely, 2^204113122 is an apocalyptic number.

204113122 is a deficient number, since it is larger than the sum of its proper divisors (105088250).

204113122 is a wasteful number, since it uses less digits than its factorization.

204113122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010564.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 204113122 is about 14286.8163703465. The cubic root of 204113122 is about 588.7853224751.

Adding to 204113122 its reverse (221311402), we get a palindrome (425424524).

The spelling of 204113122 in words is "two hundred four million, one hundred thirteen thousand, one hundred twenty-two".