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101001010101101 = 116773101137211643
BaseRepresentation
bin10110111101110000100001…
…010101000011101101101101
3111020121121021001102101222122
4112331300201111003231231
5101214300032041213401
6554451120135122325
730163040120462405
oct2675604125035555
9436547231371878
10101001010101101
112a200319124a70
12b3b2809b133a5
13444847b777536
141ad2691475805
15ba2404a6021b
hex5bdc21543b6d

101001010101101 has 128 divisors (see below), whose sum is σ = 116044046641152. Its totient is φ = 87130391040000.

The previous prime is 101001010101067. The next prime is 101001010101107. The reversal of 101001010101101 is 101101010100101.

It is a de Polignac number, because none of the positive numbers 2k-101001010101101 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 (101001010101107) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 157077775886 + ... + 157077776528.

It is an arithmetic number, because the mean of its divisors is an integer number (906594114384).

Almost surely, 2101001010101101 is an apocalyptic number.

101001010101101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101001010101101 is a deficient number, since it is larger than the sum of its proper divisors (15043036540051).

101001010101101 is a wasteful number, since it uses less digits than its factorization.

101001010101101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243.

The product of its (nonzero) digits is 1, while the sum is 8.

Adding to 101001010101101 its reverse (101101010100101), we get a palindrome (202102020201202).

It can be divided in two parts, 1010010 and 10101101, that added together give a palindrome (11111111).

The spelling of 101001010101101 in words is "one hundred one trillion, one billion, ten million, one hundred one thousand, one hundred one".

Divisors: 1 11 67 73 101 137 211 643 737 803 1111 1507 2321 4891 6767 7073 7373 9179 10001 13837 14137 15403 21311 28907 43081 46939 53801 64943 74437 81103 88091 100969 110011 135673 152207 155507 169433 234421 317977 473891 493991 516329 670067 714373 927079 969001 1010101 1032001 1427837 1492403 1555703 1936769 2110211 2919607 3144913 4351181 4740839 5433901 5902097 6430643 7370737 8897191 9090091 9904129 10197869 11111111 11352011 13702973 15706207 17112733 18587201 21304459 23212321 32115677 34594043 47862991 52149229 64923067 67676767 70737073 97869101 99991001 104232101 108945419 141384137 150732703 195613669 204459211 213131311 317636213 430853081 596111797 649494943 663576643 744444437 918099191 1000317029 1146553111 1245342467 1356865673 1555225507 1877307301 2151750359 2344444421 3493998343 4739383891 6557229767 7144444373 7299343073 10099091101 11003487319 13698767137 14279797837 14925522403 20650380311 43516161181 67021240943 90910000091 125779589167 137043432973 157077776207 478677772991 737233650373 1000010001001 1383575480837 1507477762703 9181910009191 101001010101101