21104314311420 has 36 divisors (see below), whose sum is σ = 64016420078520. Its totient is φ = 5627817149664.

The previous prime is 21104314311419. The next prime is 21104314311439. The reversal of 21104314311420 is 2411341340112.

It is a happy number.

21104314311420 is a `hidden beast` number, since 2 + 1 + 10 + 4 + 314 + 311 + 4 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 58623095130 + ... + 58623095489.

It is an arithmetic number, because the mean of its divisors is an integer number (1778233891070).

Almost surely, 2^{21104314311420} is an apocalyptic number.

21104314311420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21104314311420 is an abundant number, since it is smaller than the sum of its proper divisors (42912105767100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21104314311420 is a wasteful number, since it uses less digits than its factorization.

21104314311420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117246190634 (or 117246190629 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 21104314311420 its reverse (2411341340112), we get a palindrome (23515655651532).

The spelling of 21104314311420 in words is "twenty-one trillion, one hundred four billion, three hundred fourteen million, three hundred eleven thousand, four hundred twenty".