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11121011 = 111011001
BaseRepresentation
bin101010011011…
…000101110011
3202221000011022
4222123011303
510321333021
61034210055
7163345526
oct52330563
922830138
1011121011
116306420
12388392b
1323c4ba5
141696bbd
15e9a1ab
hexa9b173

11121011 has 4 divisors (see below), whose sum is σ = 12132024. Its totient is φ = 10110000.

The previous prime is 11120981. The next prime is 11121037. The reversal of 11121011 is 11012111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11121011 - 210 = 11119987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11121011.

It is not an unprimeable number, because it can be changed into a prime (11121041) 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 in 3 ways as a sum of consecutive naturals, for example, 505490 + ... + 505511.

It is an arithmetic number, because the mean of its divisors is an integer number (3033006).

Almost surely, 211121011 is an apocalyptic number.

11121011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11121011 is a deficient number, since it is larger than the sum of its proper divisors (1011013).

11121011 is a wasteful number, since it uses less digits than its factorization.

11121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011012.

The product of its (nonzero) digits is 2, while the sum is 8.

The square root of 11121011 is about 3334.8179860376. The cubic root of 11121011 is about 223.2105701391.

Adding to 11121011 its reverse (11012111), we get a palindrome (22133122).

Subtracting from 11121011 its reverse (11012111), we obtain a square (108900 = 3302).

The spelling of 11121011 in words is "eleven million, one hundred twenty-one thousand, eleven".

Divisors: 1 11 1011001 11121011