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12310220223 = 327263742967
BaseRepresentation
bin10110111011011111…
…10000110110111111
31011202220211222111100
423131233300312333
5200202404021343
65353310424143
7614026100610
oct133557606677
934686758440
1012310220223
115247886724
122476802053
1312125004a2
1484acd1c07
154c0aec9d3
hex2ddbf0dbf

12310220223 has 24 divisors (see below), whose sum is σ = 20398929408. Its totient is φ = 7007655312.

The previous prime is 12310220173. The next prime is 12310220227. The reversal of 12310220223 is 32202201321.

It is not a de Polignac number, because 12310220223 - 28 = 12310219967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12310220196 and 12310220205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12310220227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 354915 + ... + 388052.

It is an arithmetic number, because the mean of its divisors is an integer number (849955392).

Almost surely, 212310220223 is an apocalyptic number.

12310220223 is a deficient number, since it is larger than the sum of its proper divisors (8088709185).

12310220223 is a wasteful number, since it uses less digits than its factorization.

12310220223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743243 (or 743240 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12310220223 its reverse (32202201321), we get a palindrome (44512421544).

The spelling of 12310220223 in words is "twelve billion, three hundred ten million, two hundred twenty thousand, two hundred twenty-three".

Divisors: 1 3 7 9 21 63 263 789 1841 2367 5523 16569 742967 2228901 5200769 6686703 15602307 46806921 195400321 586200963 1367802247 1758602889 4103406741 12310220223