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212013212287 is a prime number
BaseRepresentation
bin1100010101110011111…
…0001110001001111111
3202021020120021002200211
43011130332032021333
511433200340243122
6241221510533251
721213612366352
oct3053476161177
9667216232624
10212013212287
1181a06a27418
123510a967227
1316cba12b706
14a39377c299
1557ace54877
hex315cf8e27f

212013212287 has 2 divisors, whose sum is σ = 212013212288. Its totient is φ = 212013212286.

The previous prime is 212013212263. The next prime is 212013212321. The reversal of 212013212287 is 782212310212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-212013212287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212013212087) 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 as a sum of consecutive naturals, namely, 106006606143 + 106006606144.

It is an arithmetic number, because the mean of its divisors is an integer number (106006606144).

Almost surely, 2212013212287 is an apocalyptic number.

212013212287 is a deficient number, since it is larger than the sum of its proper divisors (1).

212013212287 is an equidigital number, since it uses as much as digits as its factorization.

212013212287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 31.

Adding to 212013212287 its reverse (782212310212), we get a palindrome (994225522499).

The spelling of 212013212287 in words is "two hundred twelve billion, thirteen million, two hundred twelve thousand, two hundred eighty-seven".