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11012101181 is a prime number
BaseRepresentation
bin10100100000101111…
…10101010000111101
31001102110012200221022
422100113311100331
5140023044214211
65020415313525
7536614213154
oct122027652075
931373180838
1011012101181
114741053674
122173b1b8a5
1310665a3703
1476674059b
15446b7ebdb
hex2905f543d

11012101181 has 2 divisors, whose sum is σ = 11012101182. Its totient is φ = 11012101180.

The previous prime is 11012101157. The next prime is 11012101231. The reversal of 11012101181 is 18110121011.

11012101181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9833895556 + 1178205625 = 99166^2 + 34325^2 .

It is an emirp because it is prime and its reverse (18110121011) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11012101181 is a prime.

It is a super-2 number, since 2×110121011812 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11012101981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506050590 + 5506050591.

It is an arithmetic number, because the mean of its divisors is an integer number (5506050591).

Almost surely, 211012101181 is an apocalyptic number.

It is an amenable number.

11012101181 is a deficient number, since it is larger than the sum of its proper divisors (1).

11012101181 is an equidigital number, since it uses as much as digits as its factorization.

11012101181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 11012101181 its reverse (18110121011), we get a palindrome (29122222192).

The spelling of 11012101181 in words is "eleven billion, twelve million, one hundred one thousand, one hundred eighty-one".