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21310122110230 = 252358190369883
BaseRepresentation
bin1001101100001101001100…
…10000100010110100010110
32210110020011001100102202101
410312012212100202310112
510243121112230011410
6113153422425432314
74326414456145612
oct466064620426426
983406131312671
1021310122110230
116876632417488
12248206493b69a
13bb76c7480bc5
145395b5c74342
1526e4d2739d3a
hex1361a6422d16

21310122110230 has 16 divisors (see below), whose sum is σ = 38359846880784. Its totient is φ = 8523687270240.

The previous prime is 21310122110209. The next prime is 21310122110261. The reversal of 21310122110230 is 3201122101312.

It is a junction number, because it is equal to n+sod(n) for n = 21310122110198 and 21310122110207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44949132 + ... + 45420751.

It is an arithmetic number, because the mean of its divisors is an integer number (2397490430049).

Almost surely, 221310122110230 is an apocalyptic number.

21310122110230 is a deficient number, since it is larger than the sum of its proper divisors (17049724770554).

21310122110230 is a wasteful number, since it uses less digits than its factorization.

21310122110230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90393471.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 21310122110230 its reverse (3201122101312), we get a palindrome (24511244211542).

The spelling of 21310122110230 in words is "twenty-one trillion, three hundred ten billion, one hundred twenty-two million, one hundred ten thousand, two hundred thirty".

Divisors: 1 2 5 10 23581 47162 117905 235810 90369883 180739766 451849415 903698830 2131012211023 4262024422046 10655061055115 21310122110230