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101010101011101 = 3320272207836267
BaseRepresentation
bin10110111101111000111111…
…001100001000001010011101
3111020122110201121120111002000
4112331320333030020022131
5101214422141324323401
6554455222204552513
730163511316106242
oct2675707714101235
9436573647514060
10101010101011101
112a204163769227
12b3b4526552739
13444929a007a19
141ad2cb49935c9
15ba2787be8186
hex5bde3f30829d

101010101011101 has 32 divisors (see below), whose sum is σ = 149786436833280. Its totient is φ = 67276268364528.

The previous prime is 101010101011097. The next prime is 101010101011103. The reversal of 101010101011101 is 101110101010101.

It is not a de Polignac number, because 101010101011101 - 22 = 101010101011097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101010101011103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120368770 + ... + 121205036.

It is an arithmetic number, because the mean of its divisors is an integer number (4680826151040).

Almost surely, 2101010101011101 is an apocalyptic number.

It is an amenable number.

101010101011101 is a deficient number, since it is larger than the sum of its proper divisors (48776335822179).

101010101011101 is a wasteful number, since it uses less digits than its factorization.

101010101011101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840510 (or 840504 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 9.

Adding to 101010101011101 its reverse (101110101010101), we get a palindrome (202120202021202).

The spelling of 101010101011101 in words is "one hundred one trillion, ten billion, one hundred one million, eleven thousand, one hundred one".

Divisors: 1 3 9 27 2027 2207 6081 6621 18243 19863 54729 59589 836267 2508801 4473589 7526403 13420767 22579209 40262301 120786903 1695113209 1845641269 5085339627 5536923807 15256018881 16610771421 45768056643 49832314263 3741114852263 11223344556789 33670033670367 101010101011101