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11101121 is a prime number
BaseRepresentation
bin101010010110…
…001111000001
3202212222212122
4222112033001
510320213441
61033534025
7163233533
oct52261701
922788778
1011101121
1162a2489
123874315
1323b8b15
14168d853
15e9434b
hexa963c1

11101121 has 2 divisors, whose sum is σ = 11101122. Its totient is φ = 11101120.

The previous prime is 11101109. The next prime is 11101133. The reversal of 11101121 is 12110111.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (11101109) and next prime (11101133).

It can be written as a sum of positive squares in only one way, i.e., 10660225 + 440896 = 3265^2 + 664^2 .

It is a cyclic number.

It is not a de Polignac number, because 11101121 - 210 = 11100097 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11101099 and 11101108.

It is not a weakly prime, because it can be changed into another prime (11101141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550560 + 5550561.

It is an arithmetic number, because the mean of its divisors is an integer number (5550561).

Almost surely, 211101121 is an apocalyptic number.

It is an amenable number.

11101121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101121 is an equidigital number, since it uses as much as digits as its factorization.

11101121 is an odious number, because the sum of its binary digits is odd.

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

The square root of 11101121 is about 3331.8344796823. The cubic root of 11101121 is about 223.0774195452.

Adding to 11101121 its reverse (12110111), we get a palindrome (23211232).

The spelling of 11101121 in words is "eleven million, one hundred one thousand, one hundred twenty-one".