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13121311203330 = 23511172338914653
BaseRepresentation
bin1011111011110000101100…
…0101111110000000000010
31201110101101201221011121020
42332330023011332000002
53204434421132001310
643523502552410310
72522661215665131
oct276741305760002
951411351834536
1013121311203330
1141a9798114330
12157abb86a6996
13742446700c35
14335109567918
1517b4ae7e2170
hexbef0b17e002

13121311203330 has 64 divisors (see below), whose sum is σ = 36374800699008. Its totient is φ = 2993810754560.

The previous prime is 13121311203233. The next prime is 13121311203359. The reversal of 13121311203330 is 3330211312131.

It is a self number, because there is not a number n which added to its sum of digits gives 13121311203330.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1169451717 + ... + 1169462936.

It is an arithmetic number, because the mean of its divisors is an integer number (568356260922).

Almost surely, 213121311203330 is an apocalyptic number.

13121311203330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13121311203330 is an abundant number, since it is smaller than the sum of its proper divisors (23253489495678).

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

13121311203330 is a wasteful number, since it uses less digits than its factorization.

13121311203330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2338914691.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 13121311203330 its reverse (3330211312131), we get a palindrome (16451522515461).

The spelling of 13121311203330 in words is "thirteen trillion, one hundred twenty-one billion, three hundred eleven million, two hundred three thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 17 22 30 33 34 51 55 66 85 102 110 165 170 187 255 330 374 510 561 935 1122 1870 2805 5610 2338914653 4677829306 7016743959 11694573265 14033487918 23389146530 25728061183 35083719795 39761549101 51456122366 70167439590 77184183549 79523098202 119284647303 128640305915 154368367098 198807745505 238569294606 257280611830 385920917745 397615491010 437377040111 596423236515 771841835490 874754080222 1192846473030 1312131120333 2186885200555 2624262240666 4373770401110 6560655601665 13121311203330