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12641113087 is a prime number
BaseRepresentation
bin10111100010111100…
…00001001111111111
31012121222111002011121
423301132001033333
5201342111104322
65450210531411
7625154455051
oct136136011777
935558432147
1012641113087
1153a76403a9
122549596b67
131265c26795
1487cc278d1
154debaeec7
hex2f17813ff

12641113087 has 2 divisors, whose sum is σ = 12641113088. Its totient is φ = 12641113086.

The previous prime is 12641113081. The next prime is 12641113123. The reversal of 12641113087 is 78031114621.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12641113087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12641113081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6320556543 + 6320556544.

It is an arithmetic number, because the mean of its divisors is an integer number (6320556544).

Almost surely, 212641113087 is an apocalyptic number.

12641113087 is a deficient number, since it is larger than the sum of its proper divisors (1).

12641113087 is an equidigital number, since it uses as much as digits as its factorization.

12641113087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 34.

The spelling of 12641113087 in words is "twelve billion, six hundred forty-one million, one hundred thirteen thousand, eighty-seven".