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2100101110111 = 2961228169259
BaseRepresentation
bin11110100011110111110…
…001111101100101011111
321102202201122202010012201
4132203313301331211133
5233402001341010421
64244434555112331
7304504314621154
oct36436761754537
97382648663181
102100101110111
1173a714366464
1229b01b7426a7
13123066cb5984
147390711022b
153996603ab91
hex1e8f7c7d95f

2100101110111 has 24 divisors (see below), whose sum is σ = 2216609506800. Its totient is φ = 1987316755200.

The previous prime is 2100101110109. The next prime is 2100101110139. The reversal of 2100101110111 is 1110111010012.

It is not a de Polignac number, because 2100101110111 - 21 = 2100101110109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100101110171) 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, 30287800 + ... + 30357058.

It is an arithmetic number, because the mean of its divisors is an integer number (92358729450).

Almost surely, 22100101110111 is an apocalyptic number.

2100101110111 is a deficient number, since it is larger than the sum of its proper divisors (116508396689).

2100101110111 is an equidigital number, since it uses as much as digits as its factorization.

2100101110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69691 (or 69630 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 2100101110111 its reverse (1110111010012), we get a palindrome (3210212120123).

The spelling of 2100101110111 in words is "two trillion, one hundred billion, one hundred one million, one hundred ten thousand, one hundred eleven".

Divisors: 1 29 61 281 1769 3721 8149 17141 69259 107909 497089 1045601 2008511 4224799 19461779 30322429 122519171 257712739 564391591 1187168519 7473669431 34427887051 72417279659 2100101110111