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1085017651213 is a prime number
BaseRepresentation
bin11111100101000000001…
…01110111100000001101
310211201121202010120221211
433302200011313200031
5120234104004314323
62150241125454421
7141250514602246
oct17624005674015
93751552116854
101085017651213
113891761a5661
1215634a271411
137b416acc532
143a72d759ccd
151d3554c670d
hexfca017780d

1085017651213 has 2 divisors, whose sum is σ = 1085017651214. Its totient is φ = 1085017651212.

The previous prime is 1085017651187. The next prime is 1085017651231. The reversal of 1085017651213 is 3121567105801.

Together with next prime (1085017651231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1071966188164 + 13051463049 = 1035358^2 + 114243^2 .

It is an emirp because it is prime and its reverse (3121567105801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1085017651213 - 25 = 1085017651181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1085017651283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542508825606 + 542508825607.

It is an arithmetic number, because the mean of its divisors is an integer number (542508825607).

Almost surely, 21085017651213 is an apocalyptic number.

It is an amenable number.

1085017651213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1085017651213 is an equidigital number, since it uses as much as digits as its factorization.

1085017651213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 40.

The spelling of 1085017651213 in words is "one trillion, eighty-five billion, seventeen million, six hundred fifty-one thousand, two hundred thirteen".