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11001111084521 is a prime number
BaseRepresentation
bin1010000000010110010101…
…0100010111110111101001
31102221200210100100121201222
42200011211110113313221
52420220233414201041
635221501325551425
72213542534223645
oct240054524276751
942850710317658
1011001111084521
1135615aa455188
121298109a15575
1361a52868610c
142a0656d5bc25
1514126dece74b
hexa0165517de9

11001111084521 has 2 divisors, whose sum is σ = 11001111084522. Its totient is φ = 11001111084520.

The previous prime is 11001111084517. The next prime is 11001111084529. The reversal of 11001111084521 is 12548011110011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7293699469225 + 3707411615296 = 2700685^2 + 1925464^2 .

It is a cyclic number.

It is not a de Polignac number, because 11001111084521 - 22 = 11001111084517 is a prime.

It is not a weakly prime, because it can be changed into another prime (11001111084529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500555542260 + 5500555542261.

It is an arithmetic number, because the mean of its divisors is an integer number (5500555542261).

Almost surely, 211001111084521 is an apocalyptic number.

It is an amenable number.

11001111084521 is a deficient number, since it is larger than the sum of its proper divisors (1).

11001111084521 is an equidigital number, since it uses as much as digits as its factorization.

11001111084521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 26.

Adding to 11001111084521 its reverse (12548011110011), we get a palindrome (23549122194532).

The spelling of 11001111084521 in words is "eleven trillion, one billion, one hundred eleven million, eighty-four thousand, five hundred twenty-one".