Base | Representation |
---|---|
bin | 111000011111000011… |
… | …1000110000000100101 |
3 | 102121002200110221002122 |
4 | 1300332013012000211 |
5 | 3441411042200201 |
6 | 131420332115325 |
7 | 11522645414060 |
oct | 1607607060045 |
9 | 377080427078 |
10 | 121301131301 |
11 | 47497365349 |
12 | 1b613605b45 |
13 | b59192a24c |
14 | 5c2a07d8d7 |
15 | 324e31ae1b |
hex | 1c3e1c6025 |
121301131301 has 4 divisors (see below), whose sum is σ = 138629864352. Its totient is φ = 103972398252.
The previous prime is 121301131291. The next prime is 121301131327. The reversal of 121301131301 is 103131103121.
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 an emirpimes, since its reverse is a distinct semiprime: 103131103121 = 43 ⋅2398397747.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-121301131301 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 121301131301.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121301131381) 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, 8664366515 + ... + 8664366528.
It is an arithmetic number, because the mean of its divisors is an integer number (34657466088).
Almost surely, 2121301131301 is an apocalyptic number.
It is an amenable number.
121301131301 is a deficient number, since it is larger than the sum of its proper divisors (17328733051).
121301131301 is an equidigital number, since it uses as much as digits as its factorization.
121301131301 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17328733050.
The product of its (nonzero) digits is 54, while the sum is 17.
Adding to 121301131301 its reverse (103131103121), we get a palindrome (224432234422).
The spelling of 121301131301 in words is "one hundred twenty-one billion, three hundred one million, one hundred thirty-one thousand, three hundred one".
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