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101101010012001 = 32397251171126561
BaseRepresentation
bin10110111111001101101001…
…110010011100011101100001
3111020222011101012220020000100
4112333031221302130131201
5101222414332030341001
6555005055100213013
730203210163630216
oct2677155162343541
9436864335806010
10101101010012001
112a2397744aa12a
12b40a07783a169
134454a2725554c
141ad745a4b1b0d
15ba4d08c7d586
hex5bf369c9c761

101101010012001 has 24 divisors (see below), whose sum is σ = 146408596850984. Its totient is φ = 67228161960960.

The previous prime is 101101010011997. The next prime is 101101010012069. The reversal of 101101010012001 is 100210010101101.

It can be written as a sum of positive squares in 4 ways, for example, as 1945121144976 + 99155888867025 = 1394676^2 + 9957705^2 .

It is not a de Polignac number, because 101101010012001 - 22 = 101101010011997 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101101010012801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89179761 + ... + 90306321.

Almost surely, 2101101010012001 is an apocalyptic number.

It is an amenable number.

101101010012001 is a deficient number, since it is larger than the sum of its proper divisors (45307586838983).

101101010012001 is a wasteful number, since it uses less digits than its factorization.

101101010012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152081 (or 1152078 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 101101010012001 its reverse (100210010101101), we get a palindrome (201311020113102).

The spelling of 101101010012001 in words is "one hundred one trillion, one hundred one billion, ten million, twelve thousand, one".

Divisors: 1 3 9 397 1191 3573 25117 75351 226053 1126561 3379683 9971449 10139049 29914347 89743041 447244717 1341734151 4025202453 28295832637 84887497911 254662493733 11233445556889 33700336670667 101101010012001