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23120113231 is a prime number
BaseRepresentation
bin10101100010000100…
…001110111001001111
32012200021120102222001
4111202010032321033
5334322222110411
614342104133131
71445636501635
oct254204167117
965607512861
1023120113231
1198947792a6
124592a671a7
132245c25797
141194837355
15904b38dc1
hex56210ee4f

23120113231 has 2 divisors, whose sum is σ = 23120113232. Its totient is φ = 23120113230.

The previous prime is 23120113171. The next prime is 23120113249. The reversal of 23120113231 is 13231102132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23120113231 - 213 = 23120105039 is a prime.

It is a super-2 number, since 2×231201132312 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23120113199 and 23120113208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23120113031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11560056615 + 11560056616.

It is an arithmetic number, because the mean of its divisors is an integer number (11560056616).

Almost surely, 223120113231 is an apocalyptic number.

23120113231 is a deficient number, since it is larger than the sum of its proper divisors (1).

23120113231 is an equidigital number, since it uses as much as digits as its factorization.

23120113231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23120113231 its reverse (13231102132), we get a palindrome (36351215363).

The spelling of 23120113231 in words is "twenty-three billion, one hundred twenty million, one hundred thirteen thousand, two hundred thirty-one".