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13211101 is a prime number
BaseRepresentation
bin110010011001…
…010111011101
3220212012020001
4302121113131
511340223401
61151054301
7220202221
oct62312735
926765201
1013211101
117503772
124511391
132977327
141a7c781
15125e601
hexc995dd

13211101 has 2 divisors, whose sum is σ = 13211102. Its totient is φ = 13211100.

The previous prime is 13211083. The next prime is 13211111. The reversal of 13211101 is 10111231.

It is an a-pointer prime, because the next prime (13211111) can be obtained adding 13211101 to its sum of digits (10).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11323225 + 1887876 = 3365^2 + 1374^2 .

It is a cyclic number.

It is not a de Polignac number, because 13211101 - 25 = 13211069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13211111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6605550 + 6605551.

It is an arithmetic number, because the mean of its divisors is an integer number (6605551).

Almost surely, 213211101 is an apocalyptic number.

It is an amenable number.

13211101 is a deficient number, since it is larger than the sum of its proper divisors (1).

13211101 is an equidigital number, since it uses as much as digits as its factorization.

13211101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 13211101 is about 3634.7078286982. The cubic root of 13211101 is about 236.3993823963.

Adding to 13211101 its reverse (10111231), we get a palindrome (23322332).

The spelling of 13211101 in words is "thirteen million, two hundred eleven thousand, one hundred one".