204513011 has 8 divisors (see below), whose sum is σ = 209903760. Its totient is φ = 199191168.

The previous prime is 204513007. The next prime is 204513073. The reversal of 204513011 is 110315402.

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

It is a cyclic number.

It is not a de Polignac number, because 204513011 - 2² = 204513007 is a prime.

It is a super-2 number, since 2×204513011² = 83651143336572242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204513311) 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, 11186 + ... + 23111.

It is an arithmetic number, because the mean of its divisors is an integer number (26237970).

Almost surely, 2^204513011 is an apocalyptic number.

204513011 is a deficient number, since it is larger than the sum of its proper divisors (5390749).

204513011 is an equidigital number, since it uses as much as digits as its factorization.

204513011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34453.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 204513011 is about 14300.8045577863. The cubic root of 204513011 is about 589.1695786473.

Adding to 204513011 its reverse (110315402), we get a palindrome (314828413).

The spelling of 204513011 in words is "two hundred four million, five hundred thirteen thousand, eleven".