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131023121320212 = 223113132019335611
BaseRepresentation
bin11101110010101000110010…
…100110101000100100010100
3122011220200120121021110212220
4131302220302212220210110
5114133140323024221322
61142355105130342340
736412052042350362
oct3562506246504424
9564820517243786
10131023121320212
1138825659246220
12128411aa28a9b0
135815572aa9994
14244d7a5274632
15102332aad655c
hex772a329a8914

131023121320212 has 48 divisors (see below), whose sum is σ = 344271896500224. Its totient is φ = 38423202732000.

The previous prime is 131023121320153. The next prime is 131023121320241. The reversal of 131023121320212 is 212023121320131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16009663714 + ... + 16009671897.

It is an arithmetic number, because the mean of its divisors is an integer number (7172331177088).

Almost surely, 2131023121320212 is an apocalyptic number.

131023121320212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131023121320212 is an abundant number, since it is smaller than the sum of its proper divisors (213248775180012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131023121320212 is a wasteful number, since it uses less digits than its factorization.

131023121320212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32019335660 (or 32019335658 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 131023121320212 its reverse (212023121320131), we get a palindrome (343046242640343).

The spelling of 131023121320212 in words is "one hundred thirty-one trillion, twenty-three billion, one hundred twenty-one million, three hundred twenty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 11 12 22 31 33 44 62 66 93 124 132 186 341 372 682 1023 1364 2046 4092 32019335611 64038671222 96058006833 128077342444 192116013666 352212691721 384232027332 704425383442 992599403941 1056638075163 1408850766884 1985198807882 2113276150326 2977798211823 3970397615764 4226552300652 5955596423646 10918593443351 11911192847292 21837186886702 32755780330053 43674373773404 65511560660106 131023121320212