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13111200111 = 320071217747
BaseRepresentation
bin11000011010111110…
…10000100101101111
31020211202000222100010
430031133100211233
5203322431400421
610005002304303
7642623235132
oct141537204557
936752028303
1013111200111
115618a26779
12265aab8093
13130c437399
148c5434219
1551b0ba076
hex30d7d096f

13111200111 has 8 divisors (see below), whose sum is σ = 17482551424. Its totient is φ = 8740324440.

The previous prime is 13111200103. The next prime is 13111200131. The reversal of 13111200111 is 11100211131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13111200111 - 23 = 13111200103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111200101) 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 7 ways as a sum of consecutive naturals, for example, 48661 + ... + 169086.

It is an arithmetic number, because the mean of its divisors is an integer number (2185318928).

Almost surely, 213111200111 is an apocalyptic number.

13111200111 is a deficient number, since it is larger than the sum of its proper divisors (4371351313).

13111200111 is a wasteful number, since it uses less digits than its factorization.

13111200111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237821.

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 13111200111 its reverse (11100211131), we get a palindrome (24211411242).

The spelling of 13111200111 in words is "thirteen billion, one hundred eleven million, two hundred thousand, one hundred eleven".

Divisors: 1 3 20071 60213 217747 653241 4370400037 13111200111