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12443101123 = 83231164871
BaseRepresentation
bin10111001011010101…
…01010011111000011
31012010011220000211011
423211222222133003
5200440413213443
65414414501351
7620231420515
oct134552523703
935104800734
1012443101123
115305896052
1224b3204857
131233bb733b
14860801bb5
154cc5e9b9d
hex2e5aaa7c3

12443101123 has 8 divisors (see below), whose sum is σ = 12598661376. Its totient is φ = 12287675400.

The previous prime is 12443101103. The next prime is 12443101141. The reversal of 12443101123 is 32110134421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12443101123 is a prime.

It is a super-2 number, since 2×124431011232 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12443101094 and 12443101103.

It is not an unprimeable number, because it can be changed into a prime (12443101103) 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, 159378 + ... + 224248.

It is an arithmetic number, because the mean of its divisors is an integer number (1574832672).

Almost surely, 212443101123 is an apocalyptic number.

12443101123 is a deficient number, since it is larger than the sum of its proper divisors (155560253).

12443101123 is an equidigital number, since it uses as much as digits as its factorization.

12443101123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67265.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12443101123 its reverse (32110134421), we get a palindrome (44553235544).

The spelling of 12443101123 in words is "twelve billion, four hundred forty-three million, one hundred one thousand, one hundred twenty-three".

Divisors: 1 83 2311 64871 191813 5384293 149916881 12443101123