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13311113300021 = 49938837301681
BaseRepresentation
bin1100000110110011110000…
…1011100000100000110101
31202010112022101001200200002
43001230330023200200311
53221042130001100041
644151012510201045
72542460540124455
oct301547413404065
952115271050602
1013311113300021
11427223648a869
1215ab948ab3185
13757304030aa4
143403930cbd65
151813bc81559b
hexc1b3c2e0835

13311113300021 has 8 divisors (see below), whose sum is σ = 13315329986904. Its totient is φ = 13306897244160.

The previous prime is 13311113299997. The next prime is 13311113300033. The reversal of 13311113300021 is 12000331111331.

It can be written as a sum of positive squares in 4 ways, for example, as 5341247920996 + 7969865379025 = 2311114^2 + 2823095^2 .

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 13311113300021 - 222 = 13311109105717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13311113299966 and 13311113300002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13311113300921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43972301 + ... + 44273981.

It is an arithmetic number, because the mean of its divisors is an integer number (1664416248363).

Almost surely, 213311113300021 is an apocalyptic number.

It is an amenable number.

13311113300021 is a deficient number, since it is larger than the sum of its proper divisors (4216686883).

13311113300021 is an equidigital number, since it uses as much as digits as its factorization.

13311113300021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315511.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 13311113300021 its reverse (12000331111331), we get a palindrome (25311444411352).

The spelling of 13311113300021 in words is "thirteen trillion, three hundred eleven billion, one hundred thirteen million, three hundred thousand, twenty-one".

Divisors: 1 4993 8837 301681 44123141 1506293233 2665954997 13311113300021