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12031120211 = 111613678077
BaseRepresentation
bin10110011010001110…
…00101001101010011
31011001110200020020212
423031013011031103
5144114431321321
65305500354335
7604066556135
oct131507051523
934043606225
1012031120211
115114287760
1223b92459ab
13119973c656
14821bdd055
154a636b55b
hex2cd1c5353

12031120211 has 8 divisors (see below), whose sum is σ = 13133014704. Its totient is φ = 10930585120.

The previous prime is 12031120147. The next prime is 12031120217. The reversal of 12031120211 is 11202113021.

12031120211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12031120211 - 26 = 12031120147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12031120217) 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 7 ways as a sum of consecutive naturals, for example, 321296 + ... + 356781.

It is an arithmetic number, because the mean of its divisors is an integer number (1641626838).

Almost surely, 212031120211 is an apocalyptic number.

12031120211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12031120211 is a deficient number, since it is larger than the sum of its proper divisors (1101894493).

12031120211 is a wasteful number, since it uses less digits than its factorization.

12031120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679701.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12031120211 its reverse (11202113021), we get a palindrome (23233233232).

The spelling of 12031120211 in words is "twelve billion, thirty-one million, one hundred twenty thousand, two hundred eleven".

Divisors: 1 11 1613 17743 678077 7458847 1093738201 12031120211