Base | Representation |
---|---|
bin | 11000011100000010… |
… | …10010110100010011 |
3 | 1020212100211021001022 |
4 | 30032001102310103 |
5 | 203332222402011 |
6 | 10005521430055 |
7 | 643062124634 |
oct | 141601226423 |
9 | 36770737038 |
10 | 13120122131 |
11 | 5622a6aa46 |
12 | 2661a9b32b |
13 | 131123c39c |
14 | 8c66b788b |
15 | 51bc7d8db |
hex | 30e052d13 |
13120122131 has 2 divisors, whose sum is σ = 13120122132. Its totient is φ = 13120122130.
The previous prime is 13120122097. The next prime is 13120122151. The reversal of 13120122131 is 13122102131.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 13120122131 - 210 = 13120121107 is a prime.
It is a super-2 number, since 2×131201221312 (a number of 21 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (13120122151) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6560061065 + 6560061066.
It is an arithmetic number, because the mean of its divisors is an integer number (6560061066).
Almost surely, 213120122131 is an apocalyptic number.
13120122131 is a deficient number, since it is larger than the sum of its proper divisors (1).
13120122131 is an equidigital number, since it uses as much as digits as its factorization.
13120122131 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 72, while the sum is 17.
Adding to 13120122131 its reverse (13122102131), we get a palindrome (26242224262).
The spelling of 13120122131 in words is "thirteen billion, one hundred twenty million, one hundred twenty-two thousand, one hundred thirty-one".
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