Base | Representation |
---|---|
bin | 101111001000101011… |
… | …1100110010001110111 |
3 | 100200021102011210111101 |
4 | 1132101113212101313 |
5 | 3124301110131411 |
6 | 114300134550531 |
7 | 10212255260566 |
oct | 1362127462167 |
9 | 320242153441 |
10 | 101223130231 |
11 | 39a238aaa33 |
12 | 1774b508447 |
13 | 9712042042 |
14 | 4c83691bdd |
15 | 29767e38c1 |
hex | 17915e6477 |
101223130231 has 2 divisors, whose sum is σ = 101223130232. Its totient is φ = 101223130230.
The previous prime is 101223130189. The next prime is 101223130247. The reversal of 101223130231 is 132031322101.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 101223130231 - 211 = 101223128183 is a prime.
It is a super-2 number, since 2×1012231302312 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 101223130199 and 101223130208.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (101223130291) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50611565115 + 50611565116.
It is an arithmetic number, because the mean of its divisors is an integer number (50611565116).
Almost surely, 2101223130231 is an apocalyptic number.
101223130231 is a deficient number, since it is larger than the sum of its proper divisors (1).
101223130231 is an equidigital number, since it uses as much as digits as its factorization.
101223130231 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 216, while the sum is 19.
Adding to 101223130231 its reverse (132031322101), we get a palindrome (233254452332).
The spelling of 101223130231 in words is "one hundred one billion, two hundred twenty-three million, one hundred thirty thousand, two hundred thirty-one".
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