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1124030221 is a prime number
BaseRepresentation
bin100001011111111…
…0101011100001101
32220100001122120221
41002333311130031
54300222431341
6303311511341
736566046016
oct10277653415
92810048527
101124030221
115275385a6
12274528551
1314bb45652
14a93d600d
1568a30ed1
hex42ff570d

1124030221 has 2 divisors, whose sum is σ = 1124030222. Its totient is φ = 1124030220.

The previous prime is 1124030213. The next prime is 1124030251. The reversal of 1124030221 is 1220304211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1075184100 + 48846121 = 32790^2 + 6989^2 .

It is a cyclic number.

It is not a de Polignac number, because 1124030221 - 23 = 1124030213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1124030195 and 1124030204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1124030251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562015110 + 562015111.

It is an arithmetic number, because the mean of its divisors is an integer number (562015111).

Almost surely, 21124030221 is an apocalyptic number.

It is an amenable number.

1124030221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1124030221 is an equidigital number, since it uses as much as digits as its factorization.

1124030221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1124030221 is about 33526.5599338793. The cubic root of 1124030221 is about 1039.7429779674.

Adding to 1124030221 its reverse (1220304211), we get a palindrome (2344334432).

The spelling of 1124030221 in words is "one billion, one hundred twenty-four million, thirty thousand, two hundred twenty-one".