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12313841321 = 10121207121
BaseRepresentation
bin10110111011111011…
…00100111010101001
31011210011122221201002
423131331210322221
5200204320410241
65353520204345
7614101632005
oct133575447251
934704587632
1012313841321
11524992a271
122477a696b5
13121319a752
1484b595705
154c10b589b
hex2ddf64ea9

12313841321 has 6 divisors (see below), whose sum is σ = 12436977966. Its totient is φ = 12191912000.

The previous prime is 12313841227. The next prime is 12313841327. The reversal of 12313841321 is 12314831321.

It can be written as a sum of positive squares in 3 ways, for example, as 9832705600 + 2481135721 = 99160^2 + 49811^2 .

It is a de Polignac number, because none of the positive numbers 2k-12313841321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12313841327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 593360 + ... + 613761.

It is an arithmetic number, because the mean of its divisors is an integer number (2072829661).

Almost surely, 212313841321 is an apocalyptic number.

It is an amenable number.

12313841321 is a deficient number, since it is larger than the sum of its proper divisors (123136645).

12313841321 is an equidigital number, since it uses as much as digits as its factorization.

12313841321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207323 (or 1207222 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The spelling of 12313841321 in words is "twelve billion, three hundred thirteen million, eight hundred forty-one thousand, three hundred twenty-one".

Divisors: 1 101 10201 1207121 121919221 12313841321