211103313309 has 24 divisors (see below), whose sum is σ = 348500248512. Its totient is φ = 120626228160.

The previous prime is 211103313271. The next prime is 211103313359. The reversal of 211103313309 is 903313301112.

211103313309 is a `hidden beast` number, since 2 + 11 + 10 + 331 + 3 + 309 = 666.

It is not a de Polignac number, because 211103313309 - 2⁷ = 211103313181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211103313359) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3007002 + ... + 3076404.

It is an arithmetic number, because the mean of its divisors is an integer number (14520843688).

Almost surely, 2^211103313309 is an apocalyptic number.

It is an amenable number.

211103313309 is a deficient number, since it is larger than the sum of its proper divisors (137396935203).

211103313309 is a wasteful number, since it uses less digits than its factorization.

211103313309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117697 (or 117694 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The spelling of 211103313309 in words is "two hundred eleven billion, one hundred three million, three hundred thirteen thousand, three hundred nine".