20104234205 has 16 divisors (see below), whose sum is σ = 26379364608. Its totient is φ = 14587320000.

The previous prime is 20104234181. The next prime is 20104234217. The reversal of 20104234205 is 50243240102.

It is a happy number.

It is not a de Polignac number, because 20104234205 - 2⁶ = 20104234141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400346 + ... + 447755.

It is an arithmetic number, because the mean of its divisors is an integer number (1648710288).

Almost surely, 2^20104234205 is an apocalyptic number.

It is an amenable number.

20104234205 is a deficient number, since it is larger than the sum of its proper divisors (6275130403).

20104234205 is a wasteful number, since it uses less digits than its factorization.

20104234205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848548.

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 20104234205 its reverse (50243240102), we get a palindrome (70347474307).

The spelling of 20104234205 in words is "twenty billion, one hundred four million, two hundred thirty-four thousand, two hundred five".