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123223132223 = 282559436097
BaseRepresentation
bin111001011000010101…
…0111100100000111111
3102210001122001200200222
41302300222330200333
54004330110212343
6132335151211555
711621404225232
oct1626052744077
9383048050628
10123223132223
1148293278064
121ba6b216bbb
13b809b94bb9
145d6d433419
153312e22a68
hex1cb0abc83f

123223132223 has 4 divisors (see below), whose sum is σ = 123223850880. Its totient is φ = 123222413568.

The previous prime is 123223132213. The next prime is 123223132243. The reversal of 123223132223 is 322231322321.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 322231322321 = 2967531085857.

It is a cyclic number.

It is not a de Polignac number, because 123223132223 - 214 = 123223115839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123223132192 and 123223132201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123223132213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64511 + ... + 500607.

It is an arithmetic number, because the mean of its divisors is an integer number (30805962720).

Almost surely, 2123223132223 is an apocalyptic number.

123223132223 is a deficient number, since it is larger than the sum of its proper divisors (718657).

123223132223 is an equidigital number, since it uses as much as digits as its factorization.

123223132223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718656.

The product of its digits is 5184, while the sum is 26.

Adding to 123223132223 its reverse (322231322321), we get a palindrome (445454454544).

The spelling of 123223132223 in words is "one hundred twenty-three billion, two hundred twenty-three million, one hundred thirty-two thousand, two hundred twenty-three".

Divisors: 1 282559 436097 123223132223