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13061105611081 = 115717207691663
BaseRepresentation
bin1011111000010000011010…
…0011110111000101001001
31201020121222220111012022021
42332010012203313011021
53202443121014023311
643440104501524441
72515430241622123
oct276040643670511
951217886435267
1013061105611081
114186202684820
12156b3b5a13721
137398704ac238
14332237678213
15179b38ecd171
hexbe1068f7149

13061105611081 has 8 divisors (see below), whose sum is σ = 14250971217024. Its totient is φ = 11871655399920.

The previous prime is 13061105611051. The next prime is 13061105611111. The reversal of 13061105611081 is 18011650116031.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13061105611051) and next prime (13061105611111).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13061105611081 - 29 = 13061105610569 is a prime.

It is a super-3 number, since 3×130611056110813 (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13061105611051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103782945 + ... + 103908718.

It is an arithmetic number, because the mean of its divisors is an integer number (1781371402128).

Almost surely, 213061105611081 is an apocalyptic number.

13061105611081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13061105611081 is a deficient number, since it is larger than the sum of its proper divisors (1189865605943).

13061105611081 is a wasteful number, since it uses less digits than its factorization.

13061105611081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207697391.

The product of its (nonzero) digits is 4320, while the sum is 34.

The spelling of 13061105611081 in words is "thirteen trillion, sixty-one billion, one hundred five million, six hundred eleven thousand, eighty-one".

Divisors: 1 11 5717 62887 207691663 2284608293 1187373237371 13061105611081