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10001012111 = 43888726171
BaseRepresentation
bin10010101000001101…
…10101010110001111
3221210222200001110222
421110012311112033
5130440224341421
64332220221555
7502556125466
oct112406652617
927728601428
1010001012111
114272346472
121b3139a8bb
13c34c8305c
146ac3479dd
153d800ccab
hex2541b558f

10001012111 has 8 divisors (see below), whose sum is σ = 10235136384. Its totient is φ = 9766958040.

The previous prime is 10001012101. The next prime is 10001012113. The reversal of 10001012111 is 11121010001.

It is a happy number.

10001012111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10001012111 - 214 = 10000995727 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 (10001012113) 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 7 ways as a sum of consecutive naturals, for example, 369056 + ... + 395226.

It is an arithmetic number, because the mean of its divisors is an integer number (1279392048).

Almost surely, 210001012111 is an apocalyptic number.

10001012111 is a deficient number, since it is larger than the sum of its proper divisors (234124273).

10001012111 is an equidigital number, since it uses as much as digits as its factorization.

10001012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35101.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 10001012111 its reverse (11121010001), we get a palindrome (21122022112).

The spelling of 10001012111 in words is "ten billion, one million, twelve thousand, one hundred eleven".

Divisors: 1 43 8887 26171 382141 1125353 232581677 10001012111