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12131230102133 = 118110271998393
BaseRepresentation
bin1011000010001000010110…
…1010010011001001110101
31120221201211021200000022112
42300202011222103021311
53042224224401232013
641445002110340405
72361311122330322
oct260420552231165
946851737600275
1012131230102133
11395790a14a96a
12143b1444ba705
1369cc7c3981ac
142dd2245b1b49
15160863c68ba8
hexb0885a93275

12131230102133 has 4 divisors (see below), whose sum is σ = 12141502101708. Its totient is φ = 12120958102560.

The previous prime is 12131230102111. The next prime is 12131230102183. The reversal of 12131230102133 is 33120103213121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5286214877329 + 6845015224804 = 2299177^2 + 2616298^2 .

It is a cyclic number.

It is not a de Polignac number, because 12131230102133 - 28 = 12131230101877 is a prime.

It is a super-2 number, since 2×121312301021332 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12131230102099 and 12131230102108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131230102183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5135998016 + ... + 5136000377.

It is an arithmetic number, because the mean of its divisors is an integer number (3035375525427).

Almost surely, 212131230102133 is an apocalyptic number.

It is an amenable number.

12131230102133 is a deficient number, since it is larger than the sum of its proper divisors (10271999575).

12131230102133 is a wasteful number, since it uses less digits than its factorization.

12131230102133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10271999574.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 12131230102133 its reverse (33120103213121), we get a palindrome (45251333315254).

The spelling of 12131230102133 in words is "twelve trillion, one hundred thirty-one billion, two hundred thirty million, one hundred two thousand, one hundred thirty-three".

Divisors: 1 1181 10271998393 12131230102133