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20110120201 = 1910110479479
BaseRepresentation
bin10010101110101010…
…000001010100001001
31220220111201221202201
4102232222001110021
5312141142321301
613123301400201
71311230126023
oct225652012411
956814657681
1020110120201
11858a702a56
123a92a09061
131b86452912
14d8ab8d013
157ca76e201
hex4aea81509

20110120201 has 8 divisors (see below), whose sum is σ = 21378139200. Its totient is φ = 18863060400.

The previous prime is 20110120189. The next prime is 20110120241. The reversal of 20110120201 is 10202101102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20110120201 - 211 = 20110118153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20110120241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5237821 + ... + 5241658.

It is an arithmetic number, because the mean of its divisors is an integer number (2672267400).

Almost surely, 220110120201 is an apocalyptic number.

It is an amenable number.

20110120201 is a deficient number, since it is larger than the sum of its proper divisors (1268018999).

20110120201 is a wasteful number, since it uses less digits than its factorization.

20110120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10479599.

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

Adding to 20110120201 its reverse (10202101102), we get a palindrome (30312221303).

The spelling of 20110120201 in words is "twenty billion, one hundred ten million, one hundred twenty thousand, two hundred one".

Divisors: 1 19 101 1919 10479479 199110101 1058427379 20110120201