104211205405 has 8 divisors (see below), whose sum is σ = 128433269592. Its totient is φ = 81115748928.

The previous prime is 104211205391. The next prime is 104211205429. The reversal of 104211205405 is 504502112401.

It can be written as a sum of positive squares in 4 ways, for example, as 6113206969 + 98097998436 = 78187^2 + 313206^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 104211205405 - 2⁹ = 104211204893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104211205405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281651722 + ... + 281652091.

It is an arithmetic number, because the mean of its divisors is an integer number (16054158699).

Almost surely, 2^104211205405 is an apocalyptic number.

It is an amenable number.

104211205405 is a deficient number, since it is larger than the sum of its proper divisors (24222064187).

104211205405 is an equidigital number, since it uses as much as digits as its factorization.

104211205405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563303855.

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 104211205405 its reverse (504502112401), we get a palindrome (608713317806).

The spelling of 104211205405 in words is "one hundred four billion, two hundred eleven million, two hundred five thousand, four hundred five".