204122013 has 8 divisors (see below), whose sum is σ = 273302400. Its totient is φ = 135511488.

The previous prime is 204121979. The next prime is 204122021. The reversal of 204122013 is 310221402.

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

It is not a de Polignac number, because 204122013 - 2⁹ = 204121501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204121983 and 204122001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204142013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141628 + ... + 143061.

It is an arithmetic number, because the mean of its divisors is an integer number (34162800).

Almost surely, 2^204122013 is an apocalyptic number.

It is an amenable number.

204122013 is a deficient number, since it is larger than the sum of its proper divisors (69180387).

204122013 is a wasteful number, since it uses less digits than its factorization.

204122013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284931.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 204122013 is about 14287.1275279533. The cubic root of 204122013 is about 588.7938713527.

Adding to 204122013 its reverse (310221402), we get a palindrome (514343415).

The spelling of 204122013 in words is "two hundred four million, one hundred twenty-two thousand, thirteen".