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10211312111 = 7111331132801
BaseRepresentation
bin10011000001010010…
…00100000111101111
3222100122101101211212
421200221010013233
5131403043441421
64405131505035
7511021502150
oct114051040757
928318341755
1010211312111
114370023a20
121b8b8b817b
13c69705620
146cc24b927
153eb6ede5b
hex260a441ef

10211312111 has 32 divisors (see below), whose sum is σ = 13754797056. Its totient is φ = 7320960000.

The previous prime is 10211312029. The next prime is 10211312117. The reversal of 10211312111 is 11121311201.

It is a cyclic number.

It is not a de Polignac number, because 10211312111 - 210 = 10211311087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211312117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 294911 + ... + 327711.

It is an arithmetic number, because the mean of its divisors is an integer number (429837408).

Almost surely, 210211312111 is an apocalyptic number.

10211312111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10211312111 is a deficient number, since it is larger than the sum of its proper divisors (3543484945).

10211312111 is a wasteful number, since it uses less digits than its factorization.

10211312111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33143.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 10211312111 its reverse (11121311201), we get a palindrome (21332623312).

The spelling of 10211312111 in words is "ten billion, two hundred eleven million, three hundred twelve thousand, one hundred eleven".

Divisors: 1 7 11 13 77 91 143 311 1001 2177 3421 4043 23947 28301 32801 44473 229607 311311 360811 426413 2525677 2984891 4690543 10201111 32833801 71407777 112212221 132614443 785485547 928301101 1458758873 10211312111