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20020223330281 is a prime number
BaseRepresentation
bin1001000110101010100100…
…10011001100011111101001
32121212220200210020010110101
410203111102103030133221
510111002404133032111
6110325055202145401
74134261540342316
oct443252223143751
977786623203411
1020020223330281
116419590164439
1222b4078352261
13b22b8c023b65
144d2dac079d0d
1524ab8a518bc1
hex1235524cc7e9

20020223330281 has 2 divisors, whose sum is σ = 20020223330282. Its totient is φ = 20020223330280.

The previous prime is 20020223330213. The next prime is 20020223330347. The reversal of 20020223330281 is 18203332202002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18885838574656 + 1134384755625 = 4345784^2 + 1065075^2 .

It is a cyclic number.

It is not a de Polignac number, because 20020223330281 - 27 = 20020223330153 is a prime.

It is a super-2 number, since 2×200202233302812 (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20020223333281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010111665140 + 10010111665141.

It is an arithmetic number, because the mean of its divisors is an integer number (10010111665141).

Almost surely, 220020223330281 is an apocalyptic number.

It is an amenable number.

20020223330281 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020223330281 is an equidigital number, since it uses as much as digits as its factorization.

20020223330281 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.

Adding to 20020223330281 its reverse (18203332202002), we get a palindrome (38223555532283).

The spelling of 20020223330281 in words is "twenty trillion, twenty billion, two hundred twenty-three million, three hundred thirty thousand, two hundred eighty-one".