204034101104421 has 24 divisors (see below), whose sum is σ = 351623394195840. Its totient is φ = 116590914916056.

The previous prime is 204034101104419. The next prime is 204034101104521. The reversal of 204034101104421 is 124401101430402.

204034101104421 is a `hidden beast` number, since 2 + 0 + 4 + 0 + 34 + 101 + 104 + 421 = 666.

It is not a de Polignac number, because 204034101104421 - 2¹ = 204034101104419 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204034101104521) 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 23 ways as a sum of consecutive naturals, for example, 77110392141 + ... + 77110394786.

It is an arithmetic number, because the mean of its divisors is an integer number (14650974758160).

Almost surely, 2^{204034101104421} is an apocalyptic number.

204034101104421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

204034101104421 is a deficient number, since it is larger than the sum of its proper divisors (147589293091419).

204034101104421 is a wasteful number, since it uses less digits than its factorization.

204034101104421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154220786950 (or 154220786937 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 204034101104421 its reverse (124401101430402), we get a palindrome (328435202534823).

The spelling of 204034101104421 in words is "two hundred four trillion, thirty-four billion, one hundred one million, one hundred four thousand, four hundred twenty-one".