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12131302001 = 71319101127547
BaseRepresentation
bin10110100110001010…
…01111101001110001
31011022110011222211112
423103011033221301
5144321103131001
65323435523105
7606424236260
oct132305175161
934273158745
1012131302001
115165892825
1224268b9495
1311b4417b10
1483123a5d7
154b0059cbb
hex2d314fa71

12131302001 has 64 divisors (see below), whose sum is σ = 16026501120. Its totient is φ = 8915961600.

The previous prime is 12131301967. The next prime is 12131302021. The reversal of 12131302001 is 10020313121.

It is not a de Polignac number, because 12131302001 - 230 = 11057560177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12131302021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22177610 + ... + 22178156.

It is an arithmetic number, because the mean of its divisors is an integer number (250414080).

Almost surely, 212131302001 is an apocalyptic number.

It is an amenable number.

12131302001 is a deficient number, since it is larger than the sum of its proper divisors (3895199119).

12131302001 is a wasteful number, since it uses less digits than its factorization.

12131302001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 12131302001 its reverse (10020313121), we get a palindrome (22151615122).

The spelling of 12131302001 in words is "twelve billion, one hundred thirty-one million, three hundred two thousand, one".

Divisors: 1 7 13 19 91 101 127 133 247 547 707 889 1313 1651 1729 1919 2413 3829 7111 9191 10393 11557 12827 13433 16891 24947 31369 49777 55247 69469 72751 89789 135109 166751 174629 219583 243713 386729 486283 718211 903097 945763 1049693 1167257 1319911 1705991 3168269 5027477 6321679 7016369 7347851 9239377 13646009 17158843 22177883 49114583 91212797 95522063 120111901 133311011 638489579 933177077 1733043143 12131302001