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13011100111 = 18171884531
BaseRepresentation
bin11000001111000010…
…11010000111001111
31020120202200100221201
430013201122013033
5203121320200421
65551025010331
7640266345322
oct140741320717
936522610851
1013011100111
1155774770a9
1226314839a7
1312c478a209
148b60187b9
155123e5b91
hex30785a1cf

13011100111 has 4 divisors (see below), whose sum is σ = 13082984824. Its totient is φ = 12939215400.

The previous prime is 13011100097. The next prime is 13011100121. The reversal of 13011100111 is 11100111031.

13011100111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13011100111 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 (13011100121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35942085 + ... + 35942446.

It is an arithmetic number, because the mean of its divisors is an integer number (3270746206).

Almost surely, 213011100111 is an apocalyptic number.

13011100111 is a deficient number, since it is larger than the sum of its proper divisors (71884713).

13011100111 is an equidigital number, since it uses as much as digits as its factorization.

13011100111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71884712.

The product of its (nonzero) digits is 3, while the sum is 10.

Adding to 13011100111 its reverse (11100111031), we get a palindrome (24111211142).

The spelling of 13011100111 in words is "thirteen billion, eleven million, one hundred thousand, one hundred eleven".

Divisors: 1 181 71884531 13011100111