2100111969305 has 12 divisors (see below), whose sum is σ = 2931584871780. Its totient is φ = 1440076778784.

The previous prime is 2100111969289. The next prime is 2100111969343. The reversal of 2100111969305 is 5039691110012.

It can be written as a sum of positive squares in 2 ways, for example, as 1103485119961 + 996626849344 = 1050469^2 + 998312^2 .

It is not a de Polignac number, because 2100111969305 - 2⁴ = 2100111969289 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4285942550 + ... + 4285943039.

It is an arithmetic number, because the mean of its divisors is an integer number (244298739315).

Almost surely, 2^{2100111969305} is an apocalyptic number.

It is an amenable number.

2100111969305 is a deficient number, since it is larger than the sum of its proper divisors (831472902475).

2100111969305 is an equidigital number, since it uses as much as digits as its factorization.

2100111969305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8571885608 (or 8571885601 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 38.

The spelling of 2100111969305 in words is "two trillion, one hundred billion, one hundred eleven million, nine hundred sixty-nine thousand, three hundred five".