Base | Representation |
---|---|
bin | 10001101001101110001… |
… | …111011010000011110011 |
3 | 11021222001011112110010101 |
4 | 101221232033122003303 |
5 | 124333241224411011 |
6 | 2325131453213231 |
7 | 153432010340263 |
oct | 21515617320363 |
9 | 4258034473111 |
10 | 1213030310131 |
11 | 428496a93a42 |
12 | 177115491217 |
13 | 8a50803c8a3 |
14 | 429d4d037a3 |
15 | 21848b282c1 |
hex | 11a6e3da0f3 |
1213030310131 has 2 divisors, whose sum is σ = 1213030310132. Its totient is φ = 1213030310130.
The previous prime is 1213030310119. The next prime is 1213030310143. The reversal of 1213030310131 is 1310130303121.
It is a balanced prime because it is at equal distance from previous prime (1213030310119) and next prime (1213030310143).
It is an emirp because it is prime and its reverse (1310130303121) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1213030310131 - 29 = 1213030309619 is a prime.
It is a super-2 number, since 2×12130303101312 (a number of 25 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1213030310099 and 1213030310108.
It is not a weakly prime, because it can be changed into another prime (1213030310161) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606515155065 + 606515155066.
It is an arithmetic number, because the mean of its divisors is an integer number (606515155066).
Almost surely, 21213030310131 is an apocalyptic number.
1213030310131 is a deficient number, since it is larger than the sum of its proper divisors (1).
1213030310131 is an equidigital number, since it uses as much as digits as its factorization.
1213030310131 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 162, while the sum is 19.
Adding to 1213030310131 its reverse (1310130303121), we get a palindrome (2523160613252).
The spelling of 1213030310131 in words is "one trillion, two hundred thirteen billion, thirty million, three hundred ten thousand, one hundred thirty-one".
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