Base | Representation |
---|---|
bin | 11011100100001000010110… |
… | …110110101011111010101110 |
3 | 120220020111011020000120020120 |
4 | 123210020112312223322232 |
5 | 111342213301331100220 |
6 | 1105500204131025410 |
7 | 34351405433366550 |
oct | 3344102666537256 |
9 | 526214136016216 |
10 | 121230130331310 |
11 | 3569a456122160 |
12 | 1171b26543b266 |
13 | 5284c4c0acc90 |
14 | 21d17d904b4d0 |
15 | e03719611a40 |
hex | 6e4216dabeae |
121230130331310 has 256 divisors, whose sum is σ = 390669487810560. Its totient is φ = 23251728015360.
The previous prime is 121230130331309. The next prime is 121230130331333. The reversal of 121230130331310 is 13133031032121.
It is a super-2 number, since 2×1212301303313102 (a number of 29 digits) contains 22 as substring.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 646422114 + ... + 646609626.
It is an arithmetic number, because the mean of its divisors is an integer number (1526052686760).
Almost surely, 2121230130331310 is an apocalyptic number.
121230130331310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 121230130331310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195334743905280).
121230130331310 is an abundant number, since it is smaller than the sum of its proper divisors (269439357479250).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121230130331310 is a wasteful number, since it uses less digits than its factorization.
121230130331310 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 209083.
The product of its (nonzero) digits is 972, while the sum is 24.
Adding to 121230130331310 its reverse (13133031032121), we get a palindrome (134363161363431).
The spelling of 121230130331310 in words is "one hundred twenty-one trillion, two hundred thirty billion, one hundred thirty million, three hundred thirty-one thousand, three hundred ten".
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