204461205113 has 4 divisors (see below), whose sum is σ = 223048587408. Its totient is φ = 185873822820.

The previous prime is 204461205089. The next prime is 204461205133. The reversal of 204461205113 is 311502164402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204461205113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204461205133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9293691131 + ... + 9293691152.

It is an arithmetic number, because the mean of its divisors is an integer number (55762146852).

Almost surely, 2^204461205113 is an apocalyptic number.

It is an amenable number.

204461205113 is a deficient number, since it is larger than the sum of its proper divisors (18587382295).

204461205113 is a wasteful number, since it uses less digits than its factorization.

204461205113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18587382294.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 204461205113 its reverse (311502164402), we get a palindrome (515963369515).

The spelling of 204461205113 in words is "two hundred four billion, four hundred sixty-one million, two hundred five thousand, one hundred thirteen".