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1108220111 is a prime number
BaseRepresentation
bin100001000001110…
…0001100011001111
32212020022102012022
41002003201203033
54232201020421
6301545000355
736314500265
oct10203414317
92766272168
101108220111
1151961a199
1226b1830bb
1314879b35b
14a727c435
156745b7ab
hex420e18cf

1108220111 has 2 divisors, whose sum is σ = 1108220112. Its totient is φ = 1108220110.

The previous prime is 1108220101. The next prime is 1108220153. The reversal of 1108220111 is 1110228011.

It is a weak prime.

It is an emirp because it is prime and its reverse (1110228011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1108220111 - 210 = 1108219087 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1108220111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1108220101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554110055 + 554110056.

It is an arithmetic number, because the mean of its divisors is an integer number (554110056).

Almost surely, 21108220111 is an apocalyptic number.

1108220111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1108220111 is an equidigital number, since it uses as much as digits as its factorization.

1108220111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 17.

The square root of 1108220111 is about 33289.9400870593. The cubic root of 1108220111 is about 1034.8450874747.

Adding to 1108220111 its reverse (1110228011), we get a palindrome (2218448122).

The spelling of 1108220111 in words is "one billion, one hundred eight million, two hundred twenty thousand, one hundred eleven".