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223320230281 is a prime number
BaseRepresentation
bin1100111111111011101…
…1000100100110001001
3210100102120102010110001
43033332323010212021
512124324434332111
6250331503323001
722064040431401
oct3177673044611
9710376363401
10223320230281
11867894a2395
12373455b0461
131809c8402c5
14ab4732b801
155c2093c1c1
hex33feec4989

223320230281 has 2 divisors, whose sum is σ = 223320230282. Its totient is φ = 223320230280.

The previous prime is 223320230279. The next prime is 223320230311. The reversal of 223320230281 is 182032023322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209329125625 + 13991104656 = 457525^2 + 118284^2 .

It is a cyclic number.

It is not a de Polignac number, because 223320230281 - 21 = 223320230279 is a prime.

It is a super-2 number, since 2×2233202302812 (a number of 23 digits) contains 22 as substring.

Together with 223320230279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (223320230381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111660115140 + 111660115141.

It is an arithmetic number, because the mean of its divisors is an integer number (111660115141).

Almost surely, 2223320230281 is an apocalyptic number.

It is an amenable number.

223320230281 is a deficient number, since it is larger than the sum of its proper divisors (1).

223320230281 is an equidigital number, since it uses as much as digits as its factorization.

223320230281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 28.

The spelling of 223320230281 in words is "two hundred twenty-three billion, three hundred twenty million, two hundred thirty thousand, two hundred eighty-one".