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13113013211 = 79165987509
BaseRepresentation
bin11000011011001100…
…01011001111011011
31020211212110002102222
430031212023033123
5203323412410321
610005105214255
7642644526134
oct141546131733
936755402388
1013113013211
115619a54a01
12265b63138b
13130c92071c
148c5786c8b
1551b3273ab
hex30d98b3db

13113013211 has 4 divisors (see below), whose sum is σ = 13279000800. Its totient is φ = 12947025624.

The previous prime is 13113013187. The next prime is 13113013219. The reversal of 13113013211 is 11231031131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11231031131 = 73315322007.

It is a cyclic number.

It is not a de Polignac number, because 13113013211 - 222 = 13108818907 is a prime.

It is a super-4 number, since 4×131130132114 (a number of 42 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

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 13113013211.

It is not an unprimeable number, because it can be changed into a prime (13113013219) 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, 82993676 + ... + 82993833.

It is an arithmetic number, because the mean of its divisors is an integer number (3319750200).

Almost surely, 213113013211 is an apocalyptic number.

13113013211 is a deficient number, since it is larger than the sum of its proper divisors (165987589).

13113013211 is an equidigital number, since it uses as much as digits as its factorization.

13113013211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165987588.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 13113013211 its reverse (11231031131), we get a palindrome (24344044342).

The spelling of 13113013211 in words is "thirteen billion, one hundred thirteen million, thirteen thousand, two hundred eleven".

Divisors: 1 79 165987509 13113013211