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121300210213 = 71322347912479
BaseRepresentation
bin111000011111000001…
…1100101001000100101
3102121002121202010121021
41300332003211020211
53441410323211323
6131420300251141
711522634526510
oct1607603451045
9377077663537
10121300210213
1147496896316
121b613240ab1
13b591696c20
145c29cbdd77
15324e1d805d
hex1c3e0e5225

121300210213 has 32 divisors (see below), whose sum is σ = 150287155200. Its totient is φ = 95336312256.

The previous prime is 121300210181. The next prime is 121300210261. The reversal of 121300210213 is 312012003121.

It is a cyclic number.

It is not a de Polignac number, because 121300210213 - 25 = 121300210181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121300210513) 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 31 ways as a sum of consecutive naturals, for example, 9714108 + ... + 9726586.

It is an arithmetic number, because the mean of its divisors is an integer number (4696473600).

Almost surely, 2121300210213 is an apocalyptic number.

121300210213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121300210213 is a deficient number, since it is larger than the sum of its proper divisors (28986944987).

121300210213 is a wasteful number, since it uses less digits than its factorization.

121300210213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13201.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 121300210213 its reverse (312012003121), we get a palindrome (433312213334).

The spelling of 121300210213 in words is "one hundred twenty-one billion, three hundred million, two hundred ten thousand, two hundred thirteen".

Divisors: 1 7 13 91 223 479 1561 2899 3353 6227 12479 20293 43589 87353 106817 162227 747719 1135589 1388621 2782817 5977441 9720347 19479719 36176621 41842087 77706733 253236347 543947131 1332969343 9330785401 17328601459 121300210213