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20020112101 = 1117107059423
BaseRepresentation
bin10010101001010010…
…101010101011100101
31220200020101001212101
4102221102222223211
5312000122041401
613110324252101
71306055100523
oct225122525345
956606331771
1020020112101
1185439165a0
123a68841031
131b708ca0a2
14d7cc3d313
157c28e0101
hex4a94aaae5

20020112101 has 8 divisors (see below), whose sum is σ = 23124835584. Its totient is φ = 17129507520.

The previous prime is 20020112087. The next prime is 20020112113. The reversal of 20020112101 is 10121102002.

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 20020112101 - 211 = 20020110053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020112141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53529525 + ... + 53529898.

It is an arithmetic number, because the mean of its divisors is an integer number (2890604448).

Almost surely, 220020112101 is an apocalyptic number.

It is an amenable number.

20020112101 is a deficient number, since it is larger than the sum of its proper divisors (3104723483).

20020112101 is a wasteful number, since it uses less digits than its factorization.

20020112101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107059451.

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

Adding to 20020112101 its reverse (10121102002), we get a palindrome (30141214103).

The spelling of 20020112101 in words is "twenty billion, twenty million, one hundred twelve thousand, one hundred one".

Divisors: 1 11 17 187 107059423 1177653653 1820010191 20020112101