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230443012213 is a prime number
BaseRepresentation
bin1101011010011101111…
…0010101000001110101
3211000210222011221101021
43112213132111001311
512233421402342323
6253510345301141
722435410166441
oct3264736250165
9730728157337
10230443012213
1189804088927
12387b2a947b1
131896640547b
14b2212c9821
155edae0b05d
hex35a7795075

230443012213 has 2 divisors, whose sum is σ = 230443012214. Its totient is φ = 230443012212.

The previous prime is 230443012187. The next prime is 230443012231. The reversal of 230443012213 is 312210344032.

Together with next prime (230443012231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201671050084 + 28771962129 = 449078^2 + 169623^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-230443012213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230443012273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115221506106 + 115221506107.

It is an arithmetic number, because the mean of its divisors is an integer number (115221506107).

Almost surely, 2230443012213 is an apocalyptic number.

It is an amenable number.

230443012213 is a deficient number, since it is larger than the sum of its proper divisors (1).

230443012213 is an equidigital number, since it uses as much as digits as its factorization.

230443012213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 230443012213 its reverse (312210344032), we get a palindrome (542653356245).

The spelling of 230443012213 in words is "two hundred thirty billion, four hundred forty-three million, twelve thousand, two hundred thirteen".