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2112111311230 = 25415699053587
BaseRepresentation
bin11110101111000011101…
…001001111100101111110
321110220201200001112212101
4132233003221033211332
5234101100443424410
64254142431255314
7305411041632604
oct36570351174576
97426650045771
102112111311230
11744817855308
122a141197a53a
1312422c2ac75b
1474326225874
1539e1a623d3a
hex1ebc3a4f97e

2112111311230 has 32 divisors (see below), whose sum is σ = 3901372140960. Its totient is φ = 822789895680.

The previous prime is 2112111311213. The next prime is 2112111311257. The reversal of 2112111311230 is 321131112112.

It is a super-2 number, since 2×21121113112302 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112111311198 and 2112111311207.

It is a congruent number.

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, 4293504 + ... + 4760083.

It is an arithmetic number, because the mean of its divisors is an integer number (121917879405).

Almost surely, 22112111311230 is an apocalyptic number.

2112111311230 is a deficient number, since it is larger than the sum of its proper divisors (1789260829730).

2112111311230 is a wasteful number, since it uses less digits than its factorization.

2112111311230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9054204.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 2112111311230 its reverse (321131112112), we get a palindrome (2433242423342).

The spelling of 2112111311230 in words is "two trillion, one hundred twelve billion, one hundred eleven million, three hundred eleven thousand, two hundred thirty".

Divisors: 1 2 5 10 41 82 205 410 569 1138 2845 5690 23329 46658 116645 233290 9053587 18107174 45267935 90535870 371197067 742394134 1855985335 3711970670 5151491003 10302982006 25757455015 51514910030 211211131123 422422262246 1056055655615 2112111311230