Base | Representation |
---|---|
bin | 111000010110110001… |
… | …1010111011011101111 |
3 | 102120101022202011101201 |
4 | 1300231203113123233 |
5 | 3440323433030111 |
6 | 131333005550331 |
7 | 11513033221612 |
oct | 1605543273357 |
9 | 376338664351 |
10 | 121023330031 |
11 | 4736457311a |
12 | 1b5565753a7 |
13 | b5492025b6 |
14 | 5c01208179 |
15 | 3234c446c1 |
hex | 1c2d8d76ef |
121023330031 has 8 divisors (see below), whose sum is σ = 128104675200. Its totient is φ = 114013154520.
The previous prime is 121023330019. The next prime is 121023330049. The reversal of 121023330031 is 130033320121.
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 121023330031 - 233 = 112433395439 is a prime.
It is a super-3 number, since 3×1210233300313 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Harshad number since it is a multiple of its sum of digits (19).
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 121023329990 and 121023330008.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121023330331) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17788915 + ... + 17795716.
It is an arithmetic number, because the mean of its divisors is an integer number (16013084400).
Almost surely, 2121023330031 is an apocalyptic number.
121023330031 is a deficient number, since it is larger than the sum of its proper divisors (7081345169).
121023330031 is a wasteful number, since it uses less digits than its factorization.
121023330031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 35584829.
The product of its (nonzero) digits is 324, while the sum is 19.
Adding to 121023330031 its reverse (130033320121), we get a palindrome (251056650152).
The spelling of 121023330031 in words is "one hundred twenty-one billion, twenty-three million, three hundred thirty thousand, thirty-one".
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