2111302305 has 24 divisors (see below), whose sum is σ = 4182389952. Its totient is φ = 965166624.

The previous prime is 2111302201. The next prime is 2111302307. The reversal of 2111302305 is 5032031112.

It is not a de Polignac number, because 2111302305 - 2²⁰ = 2110253729 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2111302307) 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, 3350959 + ... + 3351588.

It is an arithmetic number, because the mean of its divisors is an integer number (174266248).

Almost surely, 2^2111302305 is an apocalyptic number.

It is an amenable number.

2111302305 is a deficient number, since it is larger than the sum of its proper divisors (2071087647).

2111302305 is a wasteful number, since it uses less digits than its factorization.

2111302305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6702565 (or 6702562 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 2111302305 is about 45948.9097259119. The cubic root of 2111302305 is about 1282.8724360933.

Adding to 2111302305 its reverse (5032031112), we get a palindrome (7143333417).

The spelling of 2111302305 in words is "two billion, one hundred eleven million, three hundred two thousand, three hundred five".