210105203353305 has 48 divisors (see below), whose sum is σ = 364020169789440. Its totient is φ = 103435390316544.

The previous prime is 210105203353261. The next prime is 210105203353321. The reversal of 210105203353305 is 503353302501012.

It is not a de Polignac number, because 210105203353305 - 2¹⁴ = 210105203336921 is a prime.

It is a super-2 number, since 2×210105203353305² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 301415737 + ... + 302111993.

It is an arithmetic number, because the mean of its divisors is an integer number (7583753537280).

Almost surely, 2^{210105203353305} is an apocalyptic number.

It is an amenable number.

210105203353305 is a deficient number, since it is larger than the sum of its proper divisors (153914966436135).

210105203353305 is a wasteful number, since it uses less digits than its factorization.

210105203353305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815330 (or 815317 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 33.

Adding to 210105203353305 its reverse (503353302501012), we get a palindrome (713458505854317).

The spelling of 210105203353305 in words is "two hundred ten trillion, one hundred five billion, two hundred three million, three hundred fifty-three thousand, three hundred five".