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101010101011 is a prime number
BaseRepresentation
bin101111000010010101…
…0111101001100010011
3100122201120022210100021
41132010222331030103
53123332041213021
6114223045004311
710204060456261
oct1360452751423
9318646283307
10101010101011
1139924628a26
12176b00b3697
1396a9b75451
144c6327b431
152962c63c41
hex1784abd313

101010101011 has 2 divisors, whose sum is σ = 101010101012. Its totient is φ = 101010101010.

The previous prime is 101010100991. The next prime is 101010101063. The reversal of 101010101011 is 110101010101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101010101011 - 25 = 101010100979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101010100985 and 101010101003.

It is not a weakly prime, because it can be changed into another prime (101010101081) 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, 50505050505 + 50505050506.

It is an arithmetic number, because the mean of its divisors is an integer number (50505050506).

Almost surely, 2101010101011 is an apocalyptic number.

101010101011 is a deficient number, since it is larger than the sum of its proper divisors (1).

101010101011 is an equidigital number, since it uses as much as digits as its factorization.

101010101011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1, while the sum is 7.

Adding to 101010101011 its reverse (110101010101), we get a palindrome (211111111112).

The spelling of 101010101011 in words is "one hundred one billion, ten million, one hundred one thousand, eleven".