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13020201321212 = 22191091613997387
BaseRepresentation
bin1011110101111000000001…
…1110011000001011111100
31201002201102012211222022102
42331132000132120023330
53201310333014234322
643405221541004232
72512451504114531
oct275360036301374
951081365758272
1013020201321212
11416a922234388
12156349b0b3678
13735a51c90817
14330276d54d88
15178a42e1d792
hexbd7807982fc

13020201321212 has 48 divisors (see below), whose sum is σ = 24206371728000. Its totient is φ = 6110440161984.

The previous prime is 13020201321187. The next prime is 13020201321221. The reversal of 13020201321212 is 21212310202031.

It is a super-2 number, since 2×130202013212122 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133646783 + ... + 133744169.

It is an arithmetic number, because the mean of its divisors is an integer number (504299411000).

Almost surely, 213020201321212 is an apocalyptic number.

It is an amenable number.

13020201321212 is a deficient number, since it is larger than the sum of its proper divisors (11186170406788).

13020201321212 is a wasteful number, since it uses less digits than its factorization.

13020201321212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113658 (or 113656 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 13020201321212 its reverse (21212310202031), we get a palindrome (34232511523243).

The spelling of 13020201321212 in words is "thirteen trillion, twenty billion, two hundred one million, three hundred twenty-one thousand, two hundred twelve".

Divisors: 1 2 4 19 38 76 109 218 436 2071 4142 8284 16139 32278 64556 97387 194774 306641 389548 613282 1226564 1759151 1850353 3518302 3700706 7036604 7401412 10615183 21230366 33423869 42460732 66847738 133695476 201688477 403376954 806753908 1571728793 3143457586 6286915172 29862847067 59725694134 119451388268 171318438437 342636876874 685273753748 3255050330303 6510100660606 13020201321212