Base | Representation |
---|---|
bin | 10010110110110001… |
… | …01001010111010011 |
3 | 222010111102212221022 |
4 | 21123120221113103 |
5 | 131213004402011 |
6 | 4352301350055 |
7 | 505601055413 |
oct | 113330512723 |
9 | 28114385838 |
10 | 10123122131 |
11 | 4325269541 |
12 | 1b6626832b |
13 | c543684c5 |
14 | 6c0652643 |
15 | 3e3acd8db |
hex | 25b6295d3 |
10123122131 has 2 divisors, whose sum is σ = 10123122132. Its totient is φ = 10123122130.
The previous prime is 10123122103. The next prime is 10123122167. The reversal of 10123122131 is 13122132101.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 10123122131 - 26 = 10123122067 is a prime.
It is a super-2 number, since 2×101231221312 (a number of 21 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (10123122731) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5061561065 + 5061561066.
It is an arithmetic number, because the mean of its divisors is an integer number (5061561066).
Almost surely, 210123122131 is an apocalyptic number.
10123122131 is a deficient number, since it is larger than the sum of its proper divisors (1).
10123122131 is an equidigital number, since it uses as much as digits as its factorization.
10123122131 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 10123122131 its reverse (13122132101), we get a palindrome (23245254232).
The spelling of 10123122131 in words is "ten billion, one hundred twenty-three million, one hundred twenty-two thousand, one hundred thirty-one".
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