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12131244411 = 3111328277959
BaseRepresentation
bin10110100110001010…
…00001100101111011
31011022110002001211120
423103011001211323
5144321044310121
65323434400323
7606423606336
oct132305014573
934273061746
1012131244411
115165853530
1224268900a3
1311b43c7840
1483122361d
154b0047bc6
hex2d314197b

12131244411 has 16 divisors (see below), whose sum is σ = 19002789120. Its totient is φ = 6786709920.

The previous prime is 12131244397. The next prime is 12131244439. The reversal of 12131244411 is 11444213121.

It is a happy number.

12131244411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12131244411 - 25 = 12131244379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12131244481) 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 15 ways as a sum of consecutive naturals, for example, 14138551 + ... + 14139408.

It is an arithmetic number, because the mean of its divisors is an integer number (1187674320).

Almost surely, 212131244411 is an apocalyptic number.

12131244411 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12131244411 is a deficient number, since it is larger than the sum of its proper divisors (6871544709).

12131244411 is a wasteful number, since it uses less digits than its factorization.

12131244411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28277986.

The product of its digits is 768, while the sum is 24.

Adding to 12131244411 its reverse (11444213121), we get a palindrome (23575457532).

The spelling of 12131244411 in words is "twelve billion, one hundred thirty-one million, two hundred forty-four thousand, four hundred eleven".

Divisors: 1 3 11 13 33 39 143 429 28277959 84833877 311057549 367613467 933172647 1102840401 4043748137 12131244411