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1010101020101 = 71223188933773
BaseRepresentation
bin11101011001011101011…
…01100110010111000101
310120120020200021102010122
432230232231212113011
5113022141330120401
62052011202231325
7132656150002145
oct16545655462705
93516220242118
101010101020101
1135a421768898
12143920955545
1374337b95c04
1436c63b84925
151b41d42b21b
hexeb2eb665c5

1010101020101 has 16 divisors (see below), whose sum is σ = 1029496366080. Its totient is φ = 990854269440.

The previous prime is 1010101020067. The next prime is 1010101020109. The reversal of 1010101020101 is 1010201010101.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1010101020101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010101020109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29891651 + ... + 29925423.

It is an arithmetic number, because the mean of its divisors is an integer number (64343522880).

Almost surely, 21010101020101 is an apocalyptic number.

It is an amenable number.

1010101020101 is a deficient number, since it is larger than the sum of its proper divisors (19395345979).

1010101020101 is a wasteful number, since it uses less digits than its factorization.

1010101020101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35956.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 1010101020101 its reverse (1010201010101), we get a palindrome (2020302030202).

The spelling of 1010101020101 in words is "one trillion, ten billion, one hundred one million, twenty thousand, one hundred one".

Divisors: 1 71 223 1889 15833 33773 134119 421247 2397883 7531379 29908537 63797197 534727909 4529600987 14226774931 1010101020101