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13112112101 = 111192010191
BaseRepresentation
bin11000011011000101…
…01111001111100101
31020211210202022100112
430031202233033211
5203323200041401
610005034022405
7642634054034
oct141542571745
936753668315
1013112112101
115619499990
12265b277a05
13130c69651a
148c55d071b
1551b1ea3bb
hex30d8af3e5

13112112101 has 4 divisors (see below), whose sum is σ = 14304122304. Its totient is φ = 11920101900.

The previous prime is 13112112071. The next prime is 13112112103. The reversal of 13112112101 is 10121121131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13112112101 - 26 = 13112112037 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 (13112112103) 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, 596005085 + ... + 596005106.

It is an arithmetic number, because the mean of its divisors is an integer number (3576030576).

Almost surely, 213112112101 is an apocalyptic number.

13112112101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13112112101 is a deficient number, since it is larger than the sum of its proper divisors (1192010203).

13112112101 is a wasteful number, since it uses less digits than its factorization.

13112112101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192010202.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 13112112101 its reverse (10121121131), we get a palindrome (23233233232).

The spelling of 13112112101 in words is "thirteen billion, one hundred twelve million, one hundred twelve thousand, one hundred one".

Divisors: 1 11 1192010191 13112112101