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20012130101 = 139144799497
BaseRepresentation
bin10010101000110100…
…001101111100110101
31220122200100112121202
4102220310031330311
5311441101130401
613105441222245
71305630204425
oct225064157465
956580315552
1020012130101
11853a3645a7
123a66031985
131b6c063c02
14d7bb62485
157c1d6506b
hex4a8d0df35

20012130101 has 8 divisors (see below), whose sum is σ = 20170234560. Its totient is φ = 19854227808.

The previous prime is 20012130067. The next prime is 20012130121. The reversal of 20012130101 is 10103121002.

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 20012130101 - 230 = 18938388277 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 (20012130121) 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, 151385 + ... + 250881.

It is an arithmetic number, because the mean of its divisors is an integer number (2521279320).

Almost surely, 220012130101 is an apocalyptic number.

It is an amenable number.

20012130101 is a deficient number, since it is larger than the sum of its proper divisors (158104459).

20012130101 is a wasteful number, since it uses less digits than its factorization.

20012130101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101083.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 20012130101 its reverse (10103121002), we get a palindrome (30115251103).

Subtracting from 20012130101 its reverse (10103121002), we obtain a palindrome (9909009099).

The spelling of 20012130101 in words is "twenty billion, twelve million, one hundred thirty thousand, one hundred one".

Divisors: 1 139 1447 99497 201133 13830083 143972159 20012130101