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101120210105 = 5173116901977
BaseRepresentation
bin101111000101100111…
…0111111010010111001
3100200000020111220121212
41132023032333102321
53124043233210410
6114242021012505
710206565414115
oct1361316772271
9320006456555
10101120210105
11399807a4582
1217720b54135
1396c6918365
144c73b40745
15296c763b05
hex178b3bf4b9

101120210105 has 8 divisors (see below), whose sum is σ = 122045665032. Its totient is φ = 80428559488.

The previous prime is 101120210071. The next prime is 101120210117. The reversal of 101120210105 is 501012021101.

It can be written as a sum of positive squares in 4 ways, for example, as 63591221929 + 37528988176 = 252173^2 + 193724^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101120210105 - 220 = 101119161529 is a prime.

It is a super-2 number, since 2×1011202101052 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101120210105.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 58450124 + ... + 58451853.

It is an arithmetic number, because the mean of its divisors is an integer number (15255708129).

Almost surely, 2101120210105 is an apocalyptic number.

It is an amenable number.

101120210105 is a deficient number, since it is larger than the sum of its proper divisors (20925454927).

101120210105 is a wasteful number, since it uses less digits than its factorization.

101120210105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116902155.

The product of its (nonzero) digits is 20, while the sum is 14.

Adding to 101120210105 its reverse (501012021101), we get a palindrome (602132231206).

The spelling of 101120210105 in words is "one hundred one billion, one hundred twenty million, two hundred ten thousand, one hundred five".

Divisors: 1 5 173 865 116901977 584509885 20224042021 101120210105