210420200050405 has 8 divisors (see below), whose sum is σ = 252504322463232. Its totient is φ = 168336105105168.

The previous prime is 210420200050327. The next prime is 210420200050421. The reversal of 210420200050405 is 504050002024012.

210420200050405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 210420200050405 - 2²¹ = 210420197953253 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 210420200050405.

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, 18516612 + ... + 27635218.

It is an arithmetic number, because the mean of its divisors is an integer number (31563040307904).

Almost surely, 2^{210420200050405} is an apocalyptic number.

It is an amenable number.

210420200050405 is a deficient number, since it is larger than the sum of its proper divisors (42084122412827).

210420200050405 is an equidigital number, since it uses as much as digits as its factorization.

210420200050405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13733795.

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 210420200050405 its reverse (504050002024012), we get a palindrome (714470202074417).

The spelling of 210420200050405 in words is "two hundred ten trillion, four hundred twenty billion, two hundred million, fifty thousand, four hundred five".