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10111201211 = 313114392389
BaseRepresentation
bin10010110101010110…
…01010111110111011
3222002200000020111202
421122223022332323
5131201431414321
64351154044415
7505364535506
oct113253127673
928080006452
1010111201211
114319567141
121b6227970b
13c51a534c7
146bcc2c13d
153e2a2670b
hex25aacafbb

10111201211 has 16 divisors (see below), whose sum is σ = 10499174400. Its totient is φ = 9727279200.

The previous prime is 10111201187. The next prime is 10111201213. The reversal of 10111201211 is 11210211101.

It is a de Polignac number, because none of the positive numbers 2k-10111201211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10111201192 and 10111201201.

It is not an unprimeable number, because it can be changed into a prime (10111201213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4231205 + ... + 4233593.

It is an arithmetic number, because the mean of its divisors is an integer number (656198400).

Almost surely, 210111201211 is an apocalyptic number.

10111201211 is a deficient number, since it is larger than the sum of its proper divisors (387973189).

10111201211 is a wasteful number, since it uses less digits than its factorization.

10111201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3170.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 10111201211 its reverse (11210211101), we get a palindrome (21321412312).

The spelling of 10111201211 in words is "ten billion, one hundred eleven million, two hundred one thousand, two hundred eleven".

Divisors: 1 31 311 439 2389 9641 13609 74059 136529 742979 1048771 4232399 23032349 32511901 326167781 10111201211