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12130313223 = 373083187361
BaseRepresentation
bin10110100110000010…
…11110010000000111
31011022101022202111010
423103001132100013
5144320330010343
65323402413303
7606412650450
oct132301362007
934271282433
1012130313223
115165277956
122426501233
1311b415ca42
14831060127
154aee11d33
hex2d305e407

12130313223 has 16 divisors (see below), whose sum is σ = 18490381056. Its totient is φ = 6929322240.

The previous prime is 12130313213. The next prime is 12130313243. The reversal of 12130313223 is 32231303121.

It is not a de Polignac number, because 12130313223 - 26 = 12130313159 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12130313223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12130313213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28938 + ... + 158423.

It is an arithmetic number, because the mean of its divisors is an integer number (1155648816).

Almost surely, 212130313223 is an apocalyptic number.

12130313223 is a deficient number, since it is larger than the sum of its proper divisors (6360067833).

12130313223 is a wasteful number, since it uses less digits than its factorization.

12130313223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190454.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 12130313223 its reverse (32231303121), we get a palindrome (44361616344).

The spelling of 12130313223 in words is "twelve billion, one hundred thirty million, three hundred thirteen thousand, two hundred twenty-three".

Divisors: 1 3 7 21 3083 9249 21581 64743 187361 562083 1311527 3934581 577633963 1732901889 4043437741 12130313223