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112111012111 = 7212231870793
BaseRepresentation
bin110100001101001010…
…1100100100100001111
3101201101012122111120211
41220122111210210033
53314100404341421
6123300400023251
711046133610500
oct1503225444417
9351335574524
10112111012111
114360081a81a
1219889901b27
13a7589721b7
1455d76d8ba7
152db25d79e1
hex1a1a56490f

112111012111 has 12 divisors (see below), whose sum is σ = 130521555792. Its totient is φ = 96016528608.

The previous prime is 112111012103. The next prime is 112111012127. The reversal of 112111012111 is 111210111211.

It is not a de Polignac number, because 112111012111 - 23 = 112111012103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112111012091 and 112111012100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112111012151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 875470 + ... + 995323.

It is an arithmetic number, because the mean of its divisors is an integer number (10876796316).

Almost surely, 2112111012111 is an apocalyptic number.

112111012111 is a deficient number, since it is larger than the sum of its proper divisors (18410543681).

112111012111 is a wasteful number, since it uses less digits than its factorization.

112111012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872030 (or 1872023 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 112111012111 its reverse (111210111211), we get a palindrome (223321123322).

The spelling of 112111012111 in words is "one hundred twelve billion, one hundred eleven million, twelve thousand, one hundred eleven".

Divisors: 1 7 49 1223 8561 59927 1870793 13095551 91668857 2287979839 16015858873 112111012111