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12131100322 = 2118927722367
BaseRepresentation
bin10110100110001000…
…11110011010100010
31011022102210202011221
423103010132122202
5144321030202242
65323431325254
7606422436265
oct132304363242
934272722157
1012131100322
115165765250
12242682082a
1311b4377093
148311c6cdc
154b001a167
hex2d311e6a2

12131100322 has 32 divisors (see below), whose sum is σ = 20147304960. Its totient is φ = 5432254080.

The previous prime is 12131100313. The next prime is 12131100341. The reversal of 12131100322 is 22300113121.

It is a junction number, because it is equal to n+sod(n) for n = 12131100296 and 12131100305.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 531183 + ... + 553549.

It is an arithmetic number, because the mean of its divisors is an integer number (629603280).

Almost surely, 212131100322 is an apocalyptic number.

12131100322 is a deficient number, since it is larger than the sum of its proper divisors (8016204638).

12131100322 is a wasteful number, since it uses less digits than its factorization.

12131100322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22746.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12131100322 its reverse (22300113121), we get a palindrome (34431213443).

The spelling of 12131100322 in words is "twelve billion, one hundred thirty-one million, one hundred thousand, three hundred twenty-two".

Divisors: 1 2 11 22 89 178 277 554 979 1958 3047 6094 22367 24653 44734 49306 246037 271183 492074 542366 1990663 3981326 6195659 12391318 21897293 43794586 68152249 136304498 551413651 1102827302 6065550161 12131100322