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12041441111 = 71720205873
BaseRepresentation
bin10110011011011100…
…11100111101010111
31011002012002120212102
423031232130331113
5144130102103421
65310505512315
7604253363210
oct131556347527
934065076772
1012041441111
11511a096a27
1224007a269b
13119b9142ab
14823328407
154a720960b
hex2cdb9cf57

12041441111 has 4 divisors (see below), whose sum is σ = 13761646992. Its totient is φ = 10321235232.

The previous prime is 12041441107. The next prime is 12041441123. The reversal of 12041441111 is 11114414021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12041441111 - 22 = 12041441107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12041441101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 860102930 + ... + 860102943.

It is an arithmetic number, because the mean of its divisors is an integer number (3440411748).

Almost surely, 212041441111 is an apocalyptic number.

12041441111 is a deficient number, since it is larger than the sum of its proper divisors (1720205881).

12041441111 is an equidigital number, since it uses as much as digits as its factorization.

12041441111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720205880.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12041441111 its reverse (11114414021), we get a palindrome (23155855132).

The spelling of 12041441111 in words is "twelve billion, forty-one million, four hundred forty-one thousand, one hundred eleven".

Divisors: 1 7 1720205873 12041441111