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13131301321143 = 3217269319053899
BaseRepresentation
bin1011111100010101111010…
…0011001111100110110111
31201111100011222002201220200
42333011132203033212313
53210120401114234033
643532234143331543
72523463613411055
oct277053643174667
951440158081820
1013131301321143
114202a54299745
121580b262b0bb3
1374337933b355
143357b62771d5
1517b89689c013
hexbf15e8cf9b7

13131301321143 has 24 divisors (see below), whose sum is σ = 20157825402000. Its totient is φ = 8208618687744.

The previous prime is 13131301321129. The next prime is 13131301321163. The reversal of 13131301321143 is 34112310313131.

13131301321143 is a `hidden beast` number, since 1 + 3 + 1 + 31 + 301 + 321 + 1 + 4 + 3 = 666.

It is not a de Polignac number, because 13131301321143 - 212 = 13131301317047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131301321163) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159485793 + ... + 159568106.

It is an arithmetic number, because the mean of its divisors is an integer number (839909391750).

Almost surely, 213131301321143 is an apocalyptic number.

13131301321143 is a deficient number, since it is larger than the sum of its proper divisors (7026524080857).

13131301321143 is a wasteful number, since it uses less digits than its factorization.

13131301321143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319054191 (or 319054188 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

Adding to 13131301321143 its reverse (34112310313131), we get a palindrome (47243611634274).

The spelling of 13131301321143 in words is "thirteen trillion, one hundred thirty-one billion, three hundred one million, three hundred twenty-one thousand, one hundred forty-three".

Divisors: 1 3 9 17 51 153 269 807 2421 4573 13719 41157 319053899 957161697 2871485091 5423916283 16271748849 48815246547 85825498831 257476496493 772429489479 1459033480127 4377100440381 13131301321143