Base | Representation |
---|---|
bin | 111000011100101111… |
… | …0010011110111100101 |
3 | 102120220021002021120011 |
4 | 1300321132103313211 |
5 | 3441231133100201 |
6 | 131404512410221 |
7 | 11521012212652 |
oct | 1607136236745 |
9 | 376807067504 |
10 | 121223331301 |
11 | 47457457026 |
12 | 1b5b1546971 |
13 | b57b78a347 |
14 | 5c1d9cac29 |
15 | 324759e151 |
hex | 1c39793de5 |
121223331301 has 4 divisors (see below), whose sum is σ = 121251838572. Its totient is φ = 121194824032.
The previous prime is 121223331239. The next prime is 121223331311. The reversal of 121223331301 is 103133322121.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 9399302500 + 111824028801 = 96950^2 + 334401^2 .
It is a cyclic number.
It is not a de Polignac number, because 121223331301 - 227 = 121089113573 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 (121223331311) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14247256 + ... + 14255761.
It is an arithmetic number, because the mean of its divisors is an integer number (30312959643).
Almost surely, 2121223331301 is an apocalyptic number.
It is an amenable number.
121223331301 is a deficient number, since it is larger than the sum of its proper divisors (28507271).
121223331301 is an equidigital number, since it uses as much as digits as its factorization.
121223331301 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28507270.
The product of its (nonzero) digits is 648, while the sum is 22.
Adding to 121223331301 its reverse (103133322121), we get a palindrome (224356653422).
The spelling of 121223331301 in words is "one hundred twenty-one billion, two hundred twenty-three million, three hundred thirty-one thousand, three hundred one".
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