Base | Representation |
---|---|
bin | 111000011100011100… |
… | …0001100110101100111 |
3 | 102120212120021201111011 |
4 | 1300320320030311213 |
5 | 3441221103403111 |
6 | 131403514323051 |
7 | 11520531253546 |
oct | 1607070146547 |
9 | 376776251434 |
10 | 121213341031 |
11 | 47451853202 |
12 | 1b5aa129487 |
13 | b5796a0043 |
14 | 5c1c54a15d |
15 | 3246779021 |
hex | 1c38e0cd67 |
121213341031 has 8 divisors (see below), whose sum is σ = 122793550400. Its totient is φ = 119634278400.
The previous prime is 121213340999. The next prime is 121213341047. The reversal of 121213341031 is 130143312121.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 121213341031 - 25 = 121213340999 is a prime.
It is a super-2 number, since 2×1212133410312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 121213340993 and 121213341011.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121213341331) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72870 + ... + 497731.
It is an arithmetic number, because the mean of its divisors is an integer number (15349193800).
Almost surely, 2121213341031 is an apocalyptic number.
121213341031 is a deficient number, since it is larger than the sum of its proper divisors (1580209369).
121213341031 is an equidigital number, since it uses as much as digits as its factorization.
121213341031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 573369.
The product of its (nonzero) digits is 432, while the sum is 22.
Adding to 121213341031 its reverse (130143312121), we get a palindrome (251356653152).
The spelling of 121213341031 in words is "one hundred twenty-one billion, two hundred thirteen million, three hundred forty-one thousand, thirty-one".
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