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101020010101 = 365927608639
BaseRepresentation
bin101111000010101000…
…0110000011001110101
3100122202020222020001121
41132011100300121311
53123342110310401
6114224041223541
710204240626613
oct1360520603165
9318666866047
10101020010101
113992a18685a
12176b3491bb1
1396abc3480a
144c646da6b3
152963a6eca1
hex1785430675

101020010101 has 4 divisors (see below), whose sum is σ = 101047622400. Its totient is φ = 100992397804.

The previous prime is 101020010089. The next prime is 101020010111. The reversal of 101020010101 is 101010020101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101020010101 - 27 = 101020009973 is a prime.

It is a super-2 number, since 2×1010200101012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101020010111) 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 in 3 ways as a sum of consecutive naturals, for example, 13800661 + ... + 13807978.

It is an arithmetic number, because the mean of its divisors is an integer number (25261905600).

Almost surely, 2101020010101 is an apocalyptic number.

It is an amenable number.

101020010101 is a deficient number, since it is larger than the sum of its proper divisors (27612299).

101020010101 is an equidigital number, since it uses as much as digits as its factorization.

101020010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27612298.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 101020010101 its reverse (101010020101), we get a palindrome (202030030202).

The spelling of 101020010101 in words is "one hundred one billion, twenty million, ten thousand, one hundred one".

Divisors: 1 3659 27608639 101020010101