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12330120243 = 3721923318947
BaseRepresentation
bin10110111101110111…
…01011010000110011
31011211022022000012010
423132323223100303
5200223002321433
65355301134003
7614360202300
oct133673532063
934738260163
1012330120243
115258038921
1224813ba303
13121667a24c
1484d7d20a7
154c272de63
hex2deeeb433

12330120243 has 48 divisors (see below), whose sum is σ = 20218273920. Its totient is φ = 6645953664.

The previous prime is 12330120233. The next prime is 12330120289. The reversal of 12330120243 is 34202103321.

It is not a de Polignac number, because 12330120243 - 24 = 12330120227 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (12330120223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 641296 + ... + 660242.

It is an arithmetic number, because the mean of its divisors is an integer number (421214040).

Almost surely, 212330120243 is an apocalyptic number.

12330120243 is a deficient number, since it is larger than the sum of its proper divisors (7888153677).

12330120243 is a wasteful number, since it uses less digits than its factorization.

12330120243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19216 (or 19209 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12330120243 its reverse (34202103321), we get a palindrome (46532223564).

The spelling of 12330120243 in words is "twelve billion, three hundred thirty million, one hundred twenty thousand, two hundred forty-three".

Divisors: 1 3 7 19 21 49 57 133 147 233 399 699 931 1631 2793 4427 4893 11417 13281 18947 30989 34251 56841 92967 132629 216923 359993 397887 650769 928403 1079979 2519951 2785209 4414651 7559853 13243953 17639657 30902557 52918971 83878369 92707671 216317899 251635107 587148583 648953697 1761445749 4110040081 12330120243