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23311031017 is a prime number
BaseRepresentation
bin10101101101011100…
…100001101011101001
32020011120211001221011
4111231130201223221
5340220110443032
614413044143521
71453445331361
oct255534415351
966146731834
1023311031017
11998251869a
124626997ba1
13227664cba1
1411b1d339a1
1591679c247
hex56d721ae9

23311031017 has 2 divisors, whose sum is σ = 23311031018. Its totient is φ = 23311031016.

The previous prime is 23311030903. The next prime is 23311031059. The reversal of 23311031017 is 71013011332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20614929241 + 2696101776 = 143579^2 + 51924^2 .

It is a cyclic number.

It is not a de Polignac number, because 23311031017 - 219 = 23310506729 is a prime.

It is not a weakly prime, because it can be changed into another prime (23311031417) 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 as a sum of consecutive naturals, namely, 11655515508 + 11655515509.

It is an arithmetic number, because the mean of its divisors is an integer number (11655515509).

Almost surely, 223311031017 is an apocalyptic number.

It is an amenable number.

23311031017 is a deficient number, since it is larger than the sum of its proper divisors (1).

23311031017 is an equidigital number, since it uses as much as digits as its factorization.

23311031017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 22.

Adding to 23311031017 its reverse (71013011332), we get a palindrome (94324042349).

The spelling of 23311031017 in words is "twenty-three billion, three hundred eleven million, thirty-one thousand, seventeen".