211030113105 has 64 divisors (see below), whose sum is σ = 453980782080. Its totient is φ = 90796142592.

The previous prime is 211030113103. The next prime is 211030113109. The reversal of 211030113105 is 501311030112.

It is not a de Polignac number, because 211030113105 - 2¹ = 211030113103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211030113103) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6551944 + ... + 6584073.

It is an arithmetic number, because the mean of its divisors is an integer number (7093449720).

Almost surely, 2^211030113105 is an apocalyptic number.

It is an amenable number.

211030113105 is an abundant number, since it is smaller than the sum of its proper divisors (242950668975).

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

211030113105 is a wasteful number, since it uses less digits than its factorization.

211030113105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13136055 (or 13136049 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

Adding to 211030113105 its reverse (501311030112), we get a palindrome (712341143217).

The spelling of 211030113105 in words is "two hundred eleven billion, thirty million, one hundred thirteen thousand, one hundred five".