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12312130303 = 112173139149
BaseRepresentation
bin10110111011101110…
…00011001011111111
31011210001110000122001
423131313003023333
5200203401132203
65353415403131
7614051244424
oct133567031377
934701400561
1012312130303
115248970800
1224773834a7
131212a1ba05
1484b26bd4b
154c0d7891d
hex2dddc32ff

12312130303 has 48 divisors (see below), whose sum is σ = 14579460000. Its totient is φ = 10388463360.

The previous prime is 12312130247. The next prime is 12312130307. The reversal of 12312130303 is 30303121321.

It is a de Polignac number, because none of the positive numbers 2k-12312130303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312130307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 82631673 + ... + 82631821.

It is an arithmetic number, because the mean of its divisors is an integer number (303738750).

Almost surely, 212312130303 is an apocalyptic number.

12312130303 is a deficient number, since it is larger than the sum of its proper divisors (2267329697).

12312130303 is a wasteful number, since it uses less digits than its factorization.

12312130303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 12312130303 its reverse (30303121321), we get a palindrome (42615251624).

The spelling of 12312130303 in words is "twelve billion, three hundred twelve million, one hundred thirty thousand, three hundred three".

Divisors: 1 11 17 121 139 149 187 289 1529 1639 2057 2363 2533 3179 4913 16819 18029 20711 25993 27863 34969 40171 43061 54043 227821 285923 306493 352087 441881 473671 594473 682907 732037 2506031 3872957 4860691 5210381 5985479 7511977 8052407 42602527 65840269 82631747 88576477 101753143 724242959 1119284573 12312130303