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13124241113221 = 74900938256067
BaseRepresentation
bin1011111011111011100110…
…1110101100000010000101
31201110122221221002000101101
42332332321232230002011
53210011421211110341
643525105414500101
72523123633550360
oct276767156540205
951418857060341
1013124241113221
1141aaa60a61a67
12157b695964631
137427c2714924
143353067270d7
1517b5d1b3d831
hexbefb9bac085

13124241113221 has 8 divisors (see below), whose sum is σ = 14999439141440. Its totient is φ = 11249119695168.

The previous prime is 13124241113197. The next prime is 13124241113287. The reversal of 13124241113221 is 12231114242131.

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 13124241113221 - 231 = 13122093629573 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13124241113221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13124241116221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18784971 + ... + 19471096.

It is an arithmetic number, because the mean of its divisors is an integer number (1874929892680).

Almost surely, 213124241113221 is an apocalyptic number.

It is an amenable number.

13124241113221 is a deficient number, since it is larger than the sum of its proper divisors (1875198028219).

13124241113221 is an equidigital number, since it uses as much as digits as its factorization.

13124241113221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38305083.

The product of its digits is 2304, while the sum is 28.

Adding to 13124241113221 its reverse (12231114242131), we get a palindrome (25355355355352).

The spelling of 13124241113221 in words is "thirteen trillion, one hundred twenty-four billion, two hundred forty-one million, one hundred thirteen thousand, two hundred twenty-one".

Divisors: 1 7 49009 343063 38256067 267792469 1874891587603 13124241113221