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12112141241 = 40130204841
BaseRepresentation
bin10110100011111000…
…01001101110111001
31011021010010112012202
423101330021232321
5144301202004431
65321513115545
7606102334064
oct132174115671
934233115182
1012112141241
115155a95a92
1224203b8bb5
1311b04696a5
1482c88d8db
154ad5228cb
hex2d1f09bb9

12112141241 has 4 divisors (see below), whose sum is σ = 12142346484. Its totient is φ = 12081936000.

The previous prime is 12112141231. The next prime is 12112141271. The reversal of 12112141241 is 14214121121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14214121121 = 41346685881.

It can be written as a sum of positive squares in 2 ways, for example, as 10449132841 + 1663008400 = 102221^2 + 40780^2 .

It is a cyclic number.

It is not a de Polignac number, because 12112141241 - 26 = 12112141177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12112141231) 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, 15102020 + ... + 15102821.

It is an arithmetic number, because the mean of its divisors is an integer number (3035586621).

Almost surely, 212112141241 is an apocalyptic number.

It is an amenable number.

12112141241 is a deficient number, since it is larger than the sum of its proper divisors (30205243).

12112141241 is an equidigital number, since it uses as much as digits as its factorization.

12112141241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30205242.

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

Adding to 12112141241 its reverse (14214121121), we get a palindrome (26326262362).

The spelling of 12112141241 in words is "twelve billion, one hundred twelve million, one hundred forty-one thousand, two hundred forty-one".

Divisors: 1 401 30204841 12112141241