Base | Representation |
---|---|
bin | 11101000100100000… |
… | …010110111000111011 |
3 | 2222120100211210010111 |
4 | 131010200112320323 |
5 | 1002411302312443 |
6 | 22201202325151 |
7 | 2153341336006 |
oct | 350440267073 |
9 | 88510753114 |
10 | 31214104123 |
11 | 12268603474 |
12 | 60716597b7 |
13 | 2c35a871c7 |
14 | 17217aa53d |
15 | c2a4ed69d |
hex | 744816e3b |
31214104123 has 2 divisors, whose sum is σ = 31214104124. Its totient is φ = 31214104122.
The previous prime is 31214104121. The next prime is 31214104183. The reversal of 31214104123 is 32140141213.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 31214104123 - 21 = 31214104121 is a prime.
Together with 31214104121, it forms a pair of twin primes.
It is a junction number, because it is equal to n+sod(n) for n = 31214104094 and 31214104103.
It is not a weakly prime, because it can be changed into another prime (31214104121) 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, 15607052061 + 15607052062.
It is an arithmetic number, because the mean of its divisors is an integer number (15607052062).
Almost surely, 231214104123 is an apocalyptic number.
31214104123 is a deficient number, since it is larger than the sum of its proper divisors (1).
31214104123 is an equidigital number, since it uses as much as digits as its factorization.
31214104123 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 576, while the sum is 22.
Adding to 31214104123 its reverse (32140141213), we get a palindrome (63354245336).
The spelling of 31214104123 in words is "thirty-one billion, two hundred fourteen million, one hundred four thousand, one hundred twenty-three".
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