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12213000323 = 41491294353
BaseRepresentation
bin10110101111111001…
…11001100010000011
31011112010220200212022
423113330321202003
5200003012002243
65335514552055
7611435534636
oct132774714203
934463820768
1012213000323
1151a7a139a7
12244a13862b
1311c8321214
1483c025c1d
154b72e6b68
hex2d7f39883

12213000323 has 4 divisors (see below), whose sum is σ = 12213336168. Its totient is φ = 12212664480.

The previous prime is 12213000313. The next prime is 12213000341. The reversal of 12213000323 is 32300031221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32300031221 = 311041936491.

It is a cyclic number.

It is not a de Polignac number, because 12213000323 - 24 = 12213000307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12213000313) 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, 105686 + ... + 188667.

It is an arithmetic number, because the mean of its divisors is an integer number (3053334042).

Almost surely, 212213000323 is an apocalyptic number.

12213000323 is a deficient number, since it is larger than the sum of its proper divisors (335845).

12213000323 is an equidigital number, since it uses as much as digits as its factorization.

12213000323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335844.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 12213000323 its reverse (32300031221), we get a palindrome (44513031544).

The spelling of 12213000323 in words is "twelve billion, two hundred thirteen million, three hundred twenty-three", and thus it is an aban number.

Divisors: 1 41491 294353 12213000323