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13323031131 = 389186126813
BaseRepresentation
bin11000110100001110…
…10101001001011011
31021101111122002212110
430122013111021123
5204241143444011
610042010443403
7651104616234
oct143207251133
937344562773
1013323031131
11571755a533
1226b9a33563
1313442a4797
1490561608b
1552e9aeba6
hex31a1d525b

13323031131 has 16 divisors (see below), whose sum is σ = 17973960480. Its totient is φ = 8777176320.

The previous prime is 13323031123. The next prime is 13323031157. The reversal of 13323031131 is 13113032331.

13323031131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13323031131 - 23 = 13323031123 is a prime.

It is a super-2 number, since 2×133230311312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13323031098 and 13323031107.

It is not an unprimeable number, because it can be changed into a prime (13323031171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 483481 + ... + 510293.

It is an arithmetic number, because the mean of its divisors is an integer number (1123372530).

Almost surely, 213323031131 is an apocalyptic number.

13323031131 is a deficient number, since it is larger than the sum of its proper divisors (4650929349).

13323031131 is a wasteful number, since it uses less digits than its factorization.

13323031131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28766.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 13323031131 its reverse (13113032331), we get a palindrome (26436063462).

The spelling of 13323031131 in words is "thirteen billion, three hundred twenty-three million, thirty-one thousand, one hundred thirty-one".

Divisors: 1 3 89 267 1861 5583 26813 80439 165629 496887 2386357 7159071 49898993 149696979 4441010377 13323031131