Base | Representation |
---|---|
bin | 111111010001111… |
… | …0010010000110011 |
3 | 12110222101022220222 |
4 | 1332203302100303 |
5 | 13322031411011 |
6 | 550405523255 |
7 | 103421560355 |
oct | 17643622063 |
9 | 5428338828 |
10 | 2123310131 |
11 | 99a60a368 |
12 | 4b311352b |
13 | 27ab8cb37 |
14 | 161dd70d5 |
15 | c661dddb |
hex | 7e8f2433 |
2123310131 has 2 divisors, whose sum is σ = 2123310132. Its totient is φ = 2123310130.
The previous prime is 2123310121. The next prime is 2123310169. The reversal of 2123310131 is 1310133212.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 2123310131 - 226 = 2056201267 is a prime.
It is a super-2 number, since 2×21233101312 = 9016891824814474322, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (2123310121) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061655065 + 1061655066.
It is an arithmetic number, because the mean of its divisors is an integer number (1061655066).
Almost surely, 22123310131 is an apocalyptic number.
2123310131 is a deficient number, since it is larger than the sum of its proper divisors (1).
2123310131 is an equidigital number, since it uses as much as digits as its factorization.
2123310131 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 108, while the sum is 17.
The square root of 2123310131 is about 46079.3894382293. The cubic root of 2123310131 is about 1285.2999105169.
Adding to 2123310131 its reverse (1310133212), we get a palindrome (3433443343).
The spelling of 2123310131 in words is "two billion, one hundred twenty-three million, three hundred ten thousand, one hundred thirty-one".
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