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BaseRepresentation
bin101110001101…
…010010010111
3211210101222101
4232031102113
511100104142
61111342531
7204650002
oct56152227
924711871
1012113047
116923791
124081a47
1326815ab
141874539
1510e40b7
hexb8d497

12113047 has 2 divisors, whose sum is σ = 12113048. Its totient is φ = 12113046.

The previous prime is 12112979. The next prime is 12113053. The reversal of 12113047 is 74031121.

It is a strong prime.

It is an emirp because it is prime and its reverse (74031121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12113047 - 223 = 3724439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12113147) 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 as a sum of consecutive naturals, namely, 6056523 + 6056524.

It is an arithmetic number, because the mean of its divisors is an integer number (6056524).

Almost surely, 212113047 is an apocalyptic number.

12113047 is a deficient number, since it is larger than the sum of its proper divisors (1).

12113047 is an equidigital number, since it uses as much as digits as its factorization.

12113047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 12113047 is about 3480.3802953126. The cubic root of 12113047 is about 229.6595277488.

Adding to 12113047 its reverse (74031121), we get a palindrome (86144168).

The spelling of 12113047 in words is "twelve million, one hundred thirteen thousand, forty-seven".