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13021111103 = 7111319684637
BaseRepresentation
bin11000010000001111…
…00110001100111111
31020121110111222110012
430020013212030333
5203131401023403
65552023333435
7640450422020
oct141007461477
936543458405
1013021111103
115582094550
1226348b127b
1312c6883a90
148b74a2c47
15513221ed8
hex3081e633f

13021111103 has 32 divisors (see below), whose sum is σ = 18403069440. Its totient is φ = 8872882560.

The previous prime is 13021111069. The next prime is 13021111139. The reversal of 13021111103 is 30111112031.

It is a happy number.

13021111103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13021111103 - 26 = 13021111039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13021111153) 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 31 ways as a sum of consecutive naturals, for example, 323300 + ... + 361337.

It is an arithmetic number, because the mean of its divisors is an integer number (575095920).

Almost surely, 213021111103 is an apocalyptic number.

13021111103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13021111103 is a deficient number, since it is larger than the sum of its proper divisors (5381958337).

13021111103 is a wasteful number, since it uses less digits than its factorization.

13021111103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684687.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 13021111103 its reverse (30111112031), we get a palindrome (43132223134).

The spelling of 13021111103 in words is "thirteen billion, twenty-one million, one hundred eleven thousand, one hundred three".

Divisors: 1 7 11 13 19 77 91 133 143 209 247 1001 1463 1729 2717 19019 684637 4792459 7531007 8900281 13008103 52717049 62301967 91056721 97903091 143089133 169105339 685321637 1001623931 1183737373 1860158729 13021111103