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101200120201 = 453292232569
BaseRepresentation
bin101111000111111111…
…1110100100110001001
3100200012210212202200001
41132033333310212021
53124224212321301
6114253553443001
710211555554135
oct1361777644611
9320183782601
10101200120201
1139a11914184
1217743870461
13970a34683b
144c805c23c5
15297479ac01
hex178fff4989

101200120201 has 4 divisors (see below), whose sum is σ = 101202398100. Its totient is φ = 101197842304.

The previous prime is 101200120187. The next prime is 101200120207. The reversal of 101200120201 is 102021002101.

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

It can be written as a sum of positive squares in 2 ways, for example, as 44186142025 + 57013978176 = 210205^2 + 238776^2 .

It is a cyclic number.

It is not a de Polignac number, because 101200120201 - 25 = 101200120169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101200120207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1070956 + ... + 1161613.

It is an arithmetic number, because the mean of its divisors is an integer number (25300599525).

Almost surely, 2101200120201 is an apocalyptic number.

It is an amenable number.

101200120201 is a deficient number, since it is larger than the sum of its proper divisors (2277899).

101200120201 is an equidigital number, since it uses as much as digits as its factorization.

101200120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2277898.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 101200120201 its reverse (102021002101), we get a palindrome (203221122302).

The spelling of 101200120201 in words is "one hundred one billion, two hundred million, one hundred twenty thousand, two hundred one".

Divisors: 1 45329 2232569 101200120201