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12310312243 is a prime number
BaseRepresentation
bin10110111011100000…
…00111010100110011
31011202221000122201111
423131300013110303
5200202414442433
65353312414151
7614026633105
oct133560072463
934687018644
1012310312243
115247939879
122476847357
131212533338
1484ad17575
154c0b19dcd
hex2ddc07533

12310312243 has 2 divisors, whose sum is σ = 12310312244. Its totient is φ = 12310312242.

The previous prime is 12310312213. The next prime is 12310312253. The reversal of 12310312243 is 34221301321.

It is a strong prime.

It is an emirp because it is prime and its reverse (34221301321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12310312243 - 29 = 12310311731 is a prime.

It is not a weakly prime, because it can be changed into another prime (12310312213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6155156121 + 6155156122.

It is an arithmetic number, because the mean of its divisors is an integer number (6155156122).

Almost surely, 212310312243 is an apocalyptic number.

12310312243 is a deficient number, since it is larger than the sum of its proper divisors (1).

12310312243 is an equidigital number, since it uses as much as digits as its factorization.

12310312243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 12310312243 its reverse (34221301321), we get a palindrome (46531613564).

The spelling of 12310312243 in words is "twelve billion, three hundred ten million, three hundred twelve thousand, two hundred forty-three".