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13101221310311 = 26349814529697
BaseRepresentation
bin1011111010100101110110…
…1001000110111101100111
31201101110112122020212022102
42332221131221012331213
53204122300123412221
643510341252322315
72521350322502351
oct276513551067547
951343478225272
1013101221310311
1141a1218977362
12157713061339b
13740594510c84
143341613620d1
1517abd5c1b30b
hexbea5da46f67

13101221310311 has 4 divisors (see below), whose sum is σ = 13151035840272. Its totient is φ = 13051406780352.

The previous prime is 13101221310269. The next prime is 13101221310323. The reversal of 13101221310311 is 11301312210131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13101221310311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13101221310341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24907264586 + ... + 24907265111.

It is an arithmetic number, because the mean of its divisors is an integer number (3287758960068).

Almost surely, 213101221310311 is an apocalyptic number.

13101221310311 is a deficient number, since it is larger than the sum of its proper divisors (49814529961).

13101221310311 is an equidigital number, since it uses as much as digits as its factorization.

13101221310311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49814529960.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 13101221310311 its reverse (11301312210131), we get a palindrome (24402533520442).

The spelling of 13101221310311 in words is "thirteen trillion, one hundred one billion, two hundred twenty-one million, three hundred ten thousand, three hundred eleven".

Divisors: 1 263 49814529697 13101221310311