204708974111 has 4 divisors (see below), whose sum is σ = 208178617800. Its totient is φ = 201239330424.

The previous prime is 204708974053. The next prime is 204708974161. The reversal of 204708974111 is 111479807402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111479807402 = 2 ⋅55739903701.

It is a cyclic number.

It is not a de Polignac number, because 204708974111 - 2¹⁰ = 204708973087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204708974161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1734821756 + ... + 1734821873.

It is an arithmetic number, because the mean of its divisors is an integer number (52044654450).

Almost surely, 2^204708974111 is an apocalyptic number.

204708974111 is a deficient number, since it is larger than the sum of its proper divisors (3469643689).

204708974111 is an equidigital number, since it uses as much as digits as its factorization.

204708974111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3469643688.

The product of its (nonzero) digits is 112896, while the sum is 44.

The spelling of 204708974111 in words is "two hundred four billion, seven hundred eight million, nine hundred seventy-four thousand, one hundred eleven".