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11212010171 is a prime number
BaseRepresentation
bin10100111000100100…
…11011001010111011
31001221101101010111222
422130102123022323
5140430233311141
65052320142255
7544562341205
oct123422331273
931841333458
1011212010171
11483398420a
12220aa6798b
131098b2845b
147850db775
154594bc14b
hex29c49b2bb

11212010171 has 2 divisors, whose sum is σ = 11212010172. Its totient is φ = 11212010170.

The previous prime is 11212010057. The next prime is 11212010207. The reversal of 11212010171 is 17101021211.

It is a strong prime.

It is an emirp because it is prime and its reverse (17101021211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11212010171 - 218 = 11211748027 is a prime.

It is not a weakly prime, because it can be changed into another prime (11212010471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606005085 + 5606005086.

It is an arithmetic number, because the mean of its divisors is an integer number (5606005086).

Almost surely, 211212010171 is an apocalyptic number.

11212010171 is a deficient number, since it is larger than the sum of its proper divisors (1).

11212010171 is an equidigital number, since it uses as much as digits as its factorization.

11212010171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 17.

Adding to 11212010171 its reverse (17101021211), we get a palindrome (28313031382).

The spelling of 11212010171 in words is "eleven billion, two hundred twelve million, ten thousand, one hundred seventy-one".