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20110212101320 = 2351145705027503
BaseRepresentation
bin1001001001010010001100…
…00011000111010011001000
32122012111222020222100100021
410210221012003013103020
510113441203244220240
6110434300501550224
74143625542310345
oct444510603072310
978174866870307
1020110212101320
116453769505aa0
1223095b1415374
13b2b500714083
144d74a76937cc
1524d1a58c854a
hex124a460c74c8

20110212101320 has 32 divisors (see below), whose sum is σ = 49361429704320. Its totient is φ = 7312804400320.

The previous prime is 20110212101311. The next prime is 20110212101339. The reversal of 20110212101320 is 2310121201102.

It is a junction number, because it is equal to n+sod(n) for n = 20110212101294 and 20110212101303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22852513312 + ... + 22852514191.

It is an arithmetic number, because the mean of its divisors is an integer number (1542544678260).

Almost surely, 220110212101320 is an apocalyptic number.

20110212101320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20110212101320 is an abundant number, since it is smaller than the sum of its proper divisors (29251217603000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20110212101320 is a wasteful number, since it uses less digits than its factorization.

20110212101320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45705027525 (or 45705027521 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20110212101320 its reverse (2310121201102), we get a palindrome (22420333302422).

The spelling of 20110212101320 in words is "twenty trillion, one hundred ten billion, two hundred twelve million, one hundred one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 45705027503 91410055006 182820110012 228525137515 365640220024 457050275030 502755302533 914100550060 1005510605066 1828201100120 2011021210132 2513776512665 4022042420264 5027553025330 10055106050660 20110212101320