Base | Representation |
---|---|
bin | 111000011111101100… |
… | …0010001000010010011 |
3 | 102121011011112000011110 |
4 | 1300333120101002103 |
5 | 3441432014111011 |
6 | 131422412144403 |
7 | 11523324320346 |
oct | 1607730210223 |
9 | 377134460143 |
10 | 121322410131 |
11 | 474a837945a |
12 | 1b61a768103 |
13 | b59616a780 |
14 | 5c2cc1c45d |
15 | 3251120ba6 |
hex | 1c3f611093 |
121322410131 has 32 divisors (see below), whose sum is σ = 183545736192. Its totient is φ = 70720467840.
The previous prime is 121322410129. The next prime is 121322410141. The reversal of 121322410131 is 131014223121.
It is not a de Polignac number, because 121322410131 - 21 = 121322410129 is a prime.
It is a super-2 number, since 2×1213224101312 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 121322410098 and 121322410107.
It is not an unprimeable number, because it can be changed into a prime (121322410141) 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 in 31 ways as a sum of consecutive naturals, for example, 564180 + ... + 748961.
It is an arithmetic number, because the mean of its divisors is an integer number (5735804256).
Almost surely, 2121322410131 is an apocalyptic number.
121322410131 is a deficient number, since it is larger than the sum of its proper divisors (62223326061).
121322410131 is a wasteful number, since it uses less digits than its factorization.
121322410131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1313283.
The product of its (nonzero) digits is 288, while the sum is 21.
Adding to 121322410131 its reverse (131014223121), we get a palindrome (252336633252).
The spelling of 121322410131 in words is "one hundred twenty-one billion, three hundred twenty-two million, four hundred ten thousand, one hundred thirty-one".
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