204044500020123 has 40 divisors (see below), whose sum is σ = 348352525764320. Its totient is φ = 116596381305600.

The previous prime is 204044500020073. The next prime is 204044500020169. The reversal of 204044500020123 is 321020005440402.

204044500020123 is a `hidden beast` number, since 2 + 0 + 4 + 0 + 4 + 450 + 0 + 0 + 201 + 2 + 3 = 666.

It is not a de Polignac number, because 204044500020123 - 2¹⁰ = 204044500019099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (204044500020173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 175645233 + ... + 176803101.

It is an arithmetic number, because the mean of its divisors is an integer number (8708813144108).

Almost surely, 2^{204044500020123} is an apocalyptic number.

204044500020123 is a deficient number, since it is larger than the sum of its proper divisors (144308025744197).

204044500020123 is a wasteful number, since it uses less digits than its factorization.

204044500020123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468689 (or 1468680 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 204044500020123 its reverse (321020005440402), we get a palindrome (525064505460525).

The spelling of 204044500020123 in words is "two hundred four trillion, forty-four billion, five hundred million, twenty thousand, one hundred twenty-three".