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13124450125553 = 1310915923581683
BaseRepresentation
bin1011111011111100011000…
…1100000000011011110001
31201110200111111100221101212
42332333012030000123301
53210012333213004203
643525142242405505
72523132052251644
oct276770614003361
951420444327355
1013124450125553
114200058a40028
12157b733960895
13742826b06070
143353263b3a5b
1517b5e51781d8
hexbefc63006f1

13124450125553 has 16 divisors (see below), whose sum is σ = 14264613464640. Its totient is φ = 12002956881984.

The previous prime is 13124450125543. The next prime is 13124450125607. The reversal of 13124450125553 is 35552105442131.

It is a cyclic number.

It is not a de Polignac number, because 13124450125553 - 210 = 13124450124529 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 13124450125553.

It is not an unprimeable number, because it can be changed into a prime (13124450125543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22272050 + ... + 22853732.

It is an arithmetic number, because the mean of its divisors is an integer number (891538341540).

Almost surely, 213124450125553 is an apocalyptic number.

13124450125553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13124450125553 is a deficient number, since it is larger than the sum of its proper divisors (1140163339087).

13124450125553 is a wasteful number, since it uses less digits than its factorization.

13124450125553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597728.

The product of its (nonzero) digits is 360000, while the sum is 41.

Adding to 13124450125553 its reverse (35552105442131), we get a palindrome (48676555567684).

The spelling of 13124450125553 in words is "thirteen trillion, one hundred twenty-four billion, four hundred fifty million, one hundred twenty-five thousand, five hundred fifty-three".

Divisors: 1 13 109 1417 15923 206999 581683 1735607 7561879 22562891 63403447 824244811 9262138409 120407799317 1009573086581 13124450125553