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201231323010211 = 13532647910912113
BaseRepresentation
bin101101110000010011010001…
…100001101001010010100011
3222101111112012220002221202011
4231300103101201221102203
5202333433222142311321
61551552221002533351
760246324530234164
oct5560232141512243
9871445186087664
10201231323010211
11591337a782763a
121a69bb8ab07257
138839056072250
14379991018776b
15183e74dadbae1
hexb704d18694a3

201231323010211 has 32 divisors (see below), whose sum is σ = 220925436923520. Its totient is φ = 182143347369984.

The previous prime is 201231323010173. The next prime is 201231323010229. The reversal of 201231323010211 is 112010323132102.

It is not a de Polignac number, because 201231323010211 - 27 = 201231323010083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201231323010811) 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, 16612833291 + ... + 16612845403.

It is an arithmetic number, because the mean of its divisors is an integer number (6903919903860).

Almost surely, 2201231323010211 is an apocalyptic number.

201231323010211 is a deficient number, since it is larger than the sum of its proper divisors (19694113913309).

201231323010211 is a wasteful number, since it uses less digits than its factorization.

201231323010211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23935.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 201231323010211 its reverse (112010323132102), we get a palindrome (313241646142313).

The spelling of 201231323010211 in words is "two hundred one trillion, two hundred thirty-one billion, three hundred twenty-three million, ten thousand, two hundred eleven".

Divisors: 1 13 53 689 2647 9109 12113 34411 118417 140291 157469 482777 641989 1823783 6276101 8345857 24111523 32063111 110337317 313449799 416820443 1277910719 1434385121 1699344883 5847877801 16612839347 22091483479 76022411413 292062878099 3796817415287 15479332539247 201231323010211