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13112123230313 = 17291129497873
BaseRepresentation
bin1011111011001110011101…
…1100101000100001101001
31201102111200102010210002022
42332303213130220201221
53204312112021332223
643515343134314225
72522214431340602
oct276634734504151
951374612123068
1013112123230313
1141a59028051a8
121579273658975
13741611017a03
143348b71c0da9
1517b122d84ac8
hexbece7728869

13112123230313 has 12 divisors (see below), whose sum is σ = 13928976089340. Its totient is φ = 12340661655552.

The previous prime is 13112123230289. The next prime is 13112123230321. The reversal of 13112123230313 is 31303232121131.

It can be written as a sum of positive squares in 6 ways, for example, as 1686993138649 + 11425130091664 = 1298843^2 + 3380108^2 .

It is not a de Polignac number, because 13112123230313 - 212 = 13112123226217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13112123230513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26087345 + ... + 26585217.

It is an arithmetic number, because the mean of its divisors is an integer number (1160748007445).

Almost surely, 213112123230313 is an apocalyptic number.

It is an amenable number.

13112123230313 is a deficient number, since it is larger than the sum of its proper divisors (816852859027).

13112123230313 is an equidigital number, since it uses as much as digits as its factorization.

13112123230313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589036 (or 589019 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 13112123230313 its reverse (31303232121131), we get a palindrome (44415355351444).

The spelling of 13112123230313 in words is "thirteen trillion, one hundred twelve billion, one hundred twenty-three million, two hundred thirty thousand, three hundred thirteen".

Divisors: 1 17 289 91129 497873 1549193 8463841 26336281 143885297 45370668617 771301366489 13112123230313