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20100201231201 = 3713474643337397
BaseRepresentation
bin1001001000111111100010…
…10110101011001101100001
32122011120010120202110012220
410210133301112223031201
510113310203003344301
6110425523250141253
74143122503313160
oct444376126531541
978146116673186
1020100201231201
11644a4a1647113
122307678881829
13b2a5966bbca0
144d6bd7d013d7
1524ccbbabe936
hex1247f15ab361

20100201231201 has 64 divisors (see below), whose sum is σ = 33694108213248. Its totient is φ = 10374457344768.

The previous prime is 20100201231181. The next prime is 20100201231239. The reversal of 20100201231201 is 10213210200102.

It is not a de Polignac number, because 20100201231201 - 25 = 20100201231169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20100201231281) 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 63 ways as a sum of consecutive naturals, for example, 59405635 + ... + 59743031.

It is an arithmetic number, because the mean of its divisors is an integer number (526470440832).

Almost surely, 220100201231201 is an apocalyptic number.

20100201231201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20100201231201 is a deficient number, since it is larger than the sum of its proper divisors (13593906982047).

20100201231201 is a wasteful number, since it uses less digits than its factorization.

20100201231201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342110.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20100201231201 its reverse (10213210200102), we get a palindrome (30313411431303).

The spelling of 20100201231201 in words is "twenty trillion, one hundred billion, two hundred one million, two hundred thirty-one thousand, two hundred one".

Divisors: 1 3 7 13 21 39 47 91 141 273 329 611 987 1833 4277 4643 12831 13929 32501 60359 97503 181077 218221 337397 422513 654663 1012191 1267539 1527547 2361779 2836873 4386161 4582641 7085337 8510619 13158483 15857659 19858111 30703127 47572977 59574333 92109381 111003613 206149567 333010839 618448701 1443046969 1566534271 4329140907 4699602813 10965739897 20364945523 32897219691 61094836569 73627110737 142554618661 220881332211 427663855983 515389775159 957152439581 1546169325477 2871457318743 6700067077067 20100201231201