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123323221213 = 1217444722787
BaseRepresentation
bin111001011011010100…
…0110000010011011101
3102210022121101201222121
41302312220300103131
54010031221034323
6132353124342541
711624031040663
oct1626650602335
9383277351877
10123323221213
114833481a435
121ba98844a51
13b82483a05a
145d7c848c33
15331bae3a5d
hex1cb6a304dd

123323221213 has 8 divisors (see below), whose sum is σ = 123457727232. Its totient is φ = 123188772096.

The previous prime is 123323221187. The next prime is 123323221249. The reversal of 123323221213 is 312122323321.

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

It is a cyclic number.

It is not a de Polignac number, because 123323221213 - 217 = 123323090141 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 (123323221513) 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, 5400606 + ... + 5423392.

It is an arithmetic number, because the mean of its divisors is an integer number (15432215904).

Almost surely, 2123323221213 is an apocalyptic number.

It is an amenable number.

123323221213 is a deficient number, since it is larger than the sum of its proper divisors (134506019).

123323221213 is a wasteful number, since it uses less digits than its factorization.

123323221213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28451.

The product of its digits is 2592, while the sum is 25.

Adding to 123323221213 its reverse (312122323321), we get a palindrome (435445544534).

The spelling of 123323221213 in words is "one hundred twenty-three billion, three hundred twenty-three million, two hundred twenty-one thousand, two hundred thirteen".

Divisors: 1 1217 4447 22787 5411999 27731779 101333789 123323221213