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112112012011 = 809138580979
BaseRepresentation
bin110100001101001100…
…1011000101011101011
3101201101021112022012011
41220122121120223223
53314101133341021
6123300433300351
711046145243606
oct1503231305353
9351337468164
10112112012011
1143601342a8a
121988a1046b7
13a758c3235c
1455d78b933d
152db2733de1
hex1a1a658aeb

112112012011 has 4 divisors (see below), whose sum is σ = 112250593800. Its totient is φ = 111973430224.

The previous prime is 112112012003. The next prime is 112112012017. The reversal of 112112012011 is 110210211211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110210211211 = 507721707743.

It is a cyclic number.

It is not a de Polignac number, because 112112012011 - 23 = 112112012003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112112011982 and 112112012000.

It is not an unprimeable number, because it can be changed into a prime (112112012017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69289681 + ... + 69291298.

It is an arithmetic number, because the mean of its divisors is an integer number (28062648450).

Almost surely, 2112112012011 is an apocalyptic number.

112112012011 is a deficient number, since it is larger than the sum of its proper divisors (138581789).

112112012011 is an equidigital number, since it uses as much as digits as its factorization.

112112012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138581788.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 112112012011 its reverse (110210211211), we get a palindrome (222322223222).

The spelling of 112112012011 in words is "one hundred twelve billion, one hundred twelve million, twelve thousand, eleven".

Divisors: 1 809 138580979 112112012011