Base | Representation |
---|---|
bin | 111000011111000011… |
… | …0101000111011101001 |
3 | 102121002200020212201112 |
4 | 1300332012220323221 |
5 | 3441411024342301 |
6 | 131420325400105 |
7 | 11522644406615 |
oct | 1607606507351 |
9 | 377080225645 |
10 | 121301012201 |
11 | 47497293916 |
12 | 1b613569035 |
13 | b5918b7c85 |
14 | 5c2a04c345 |
15 | 324e2e59bb |
hex | 1c3e1a8ee9 |
121301012201 has 4 divisors (see below), whose sum is σ = 121301857152. Its totient is φ = 121300167252.
The previous prime is 121301012159. The next prime is 121301012213. The reversal of 121301012201 is 102210103121.
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, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is not a de Polignac number, because 121301012201 - 26 = 121301012137 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (121301011201) 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, 147461 + ... + 514146.
It is an arithmetic number, because the mean of its divisors is an integer number (30325464288).
Almost surely, 2121301012201 is an apocalyptic number.
It is an amenable number.
121301012201 is a deficient number, since it is larger than the sum of its proper divisors (844951).
121301012201 is an equidigital number, since it uses as much as digits as its factorization.
121301012201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 844950.
The product of its (nonzero) digits is 24, while the sum is 14.
Adding to 121301012201 its reverse (102210103121), we get a palindrome (223511115322).
The spelling of 121301012201 in words is "one hundred twenty-one billion, three hundred one million, twelve thousand, two hundred one".
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