Base | Representation |
---|---|
bin | 100001011000011… |
… | …0110011011101001 |
3 | 2220001200002020202 |
4 | 1002300312123221 |
5 | 4243221231441 |
6 | 303051401545 |
7 | 36520465565 |
oct | 10260663351 |
9 | 2801602222 |
10 | 1120102121 |
11 | 5252a5336 |
12 | 2731532b5 |
13 | 14b09b728 |
14 | a8a926a5 |
15 | 6850719b |
hex | 42c366e9 |
1120102121 has 2 divisors, whose sum is σ = 1120102122. Its totient is φ = 1120102120.
The previous prime is 1120102111. The next prime is 1120102133. The reversal of 1120102121 is 1212010211.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 697224025 + 422878096 = 26405^2 + 20564^2 .
It is an emirp because it is prime and its reverse (1212010211) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1120102121 - 26 = 1120102057 is a prime.
It is a super-2 number, since 2×11201021212 = 2509257522937397282, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (1120102111) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560051060 + 560051061.
It is an arithmetic number, because the mean of its divisors is an integer number (560051061).
Almost surely, 21120102121 is an apocalyptic number.
It is an amenable number.
1120102121 is a deficient number, since it is larger than the sum of its proper divisors (1).
1120102121 is an equidigital number, since it uses as much as digits as its factorization.
1120102121 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 8, while the sum is 11.
The square root of 1120102121 is about 33467.9267508461. The cubic root of 1120102121 is about 1038.5303826663.
Adding to 1120102121 its reverse (1212010211), we get a palindrome (2332112332).
The spelling of 1120102121 in words is "one billion, one hundred twenty million, one hundred two thousand, one hundred twenty-one".
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