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12113101 = 7111312101
BaseRepresentation
bin101110001101…
…010011001101
3211210102001101
4232031103031
511100104401
61111343101
7204650110
oct56152315
924712041
1012113101
116923830
124081a91
132681620
141874577
1510e4101
hexb8d4cd

12113101 has 16 divisors (see below), whose sum is σ = 16265088. Its totient is φ = 8712000.

The previous prime is 12113093. The next prime is 12113117. The reversal of 12113101 is 10131121.

It is not a de Polignac number, because 12113101 - 23 = 12113093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12113191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5050 + ... + 7051.

It is an arithmetic number, because the mean of its divisors is an integer number (1016568).

Almost surely, 212113101 is an apocalyptic number.

12113101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12113101 is a deficient number, since it is larger than the sum of its proper divisors (4151987).

12113101 is a wasteful number, since it uses less digits than its factorization.

12113101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12132.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 12113101 is about 3480.3880530768. The cubic root of 12113101 is about 229.6598690226.

Adding to 12113101 its reverse (10131121), we get a palindrome (22244222).

The spelling of 12113101 in words is "twelve million, one hundred thirteen thousand, one hundred one".

Divisors: 1 7 11 13 77 91 143 1001 12101 84707 133111 157313 931777 1101191 1730443 12113101