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12080206643 is a prime number
BaseRepresentation
bin10110100000000100…
…10101001100110011
31011011220001002011212
423100002111030303
5144220013103033
65314412430335
7605234030231
oct132002251463
934156032155
1012080206643
115139a6405a
1224117783ab
1311a6967c8b
14828539951
154aa815748
hex2d0095333

12080206643 has 2 divisors, whose sum is σ = 12080206644. Its totient is φ = 12080206642.

The previous prime is 12080206609. The next prime is 12080206687. The reversal of 12080206643 is 34660208021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12080206643 - 216 = 12080141107 is a prime.

It is not a weakly prime, because it can be changed into another prime (12080206043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6040103321 + 6040103322.

It is an arithmetic number, because the mean of its divisors is an integer number (6040103322).

Almost surely, 212080206643 is an apocalyptic number.

12080206643 is a deficient number, since it is larger than the sum of its proper divisors (1).

12080206643 is an equidigital number, since it uses as much as digits as its factorization.

12080206643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 12080206643 in words is "twelve billion, eighty million, two hundred six thousand, six hundred forty-three".