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12907123193 is a prime number
BaseRepresentation
bin11000000010101001…
…10001000111111001
31020022112000210102202
430001110301013321
5202413210420233
65532432235545
7634564510526
oct140124610771
936275023382
1012907123193
115523809768
12260269bbb5
1312a9083503
148a62b014d
15508207be8
hex3015311f9

12907123193 has 2 divisors, whose sum is σ = 12907123194. Its totient is φ = 12907123192.

The previous prime is 12907123169. The next prime is 12907123217. The reversal of 12907123193 is 39132170921.

It is a balanced prime because it is at equal distance from previous prime (12907123169) and next prime (12907123217).

It can be written as a sum of positive squares in only one way, i.e., 11466768889 + 1440354304 = 107083^2 + 37952^2 .

It is an emirp because it is prime and its reverse (39132170921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12907123193 - 224 = 12890345977 is a prime.

It is not a weakly prime, because it can be changed into another prime (12907123153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6453561596 + 6453561597.

It is an arithmetic number, because the mean of its divisors is an integer number (6453561597).

Almost surely, 212907123193 is an apocalyptic number.

It is an amenable number.

12907123193 is a deficient number, since it is larger than the sum of its proper divisors (1).

12907123193 is an equidigital number, since it uses as much as digits as its factorization.

12907123193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 38.

The spelling of 12907123193 in words is "twelve billion, nine hundred seven million, one hundred twenty-three thousand, one hundred ninety-three".