Base | Representation |
---|---|
bin | 11011100011101101100000… |
… | …011100100101000001010111 |
3 | 120220010201202000002200111010 |
4 | 123203231200130211001113 |
5 | 111341230230324331411 |
6 | 1105435035245543303 |
7 | 34346335130516664 |
oct | 3343554034450127 |
9 | 526121660080433 |
10 | 121201300230231 |
11 | 356892012a5541 |
12 | 1171575a274b33 |
13 | 5282306200380 |
14 | 21d0262138a6b |
15 | e02acd5797a6 |
hex | 6e3b60725057 |
121201300230231 has 32 divisors (see below), whose sum is σ = 174829986152640. Its totient is φ = 74243878861824.
The previous prime is 121201300230209. The next prime is 121201300230239. The reversal of 121201300230231 is 132032003102121.
It is not a de Polignac number, because 121201300230231 - 213 = 121201300222039 is a prime.
It is a super-2 number, since 2×1212013002302312 (a number of 29 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 121201300230198 and 121201300230207.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121201300230239) 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 31 ways as a sum of consecutive naturals, for example, 29600365 + ... + 33445241.
It is an arithmetic number, because the mean of its divisors is an integer number (5463437067270).
Almost surely, 2121201300230231 is an apocalyptic number.
121201300230231 is a deficient number, since it is larger than the sum of its proper divisors (53628685922409).
121201300230231 is a wasteful number, since it uses less digits than its factorization.
121201300230231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3848595.
The product of its (nonzero) digits is 432, while the sum is 21.
Adding to 121201300230231 its reverse (132032003102121), we get a palindrome (253233303332352).
The spelling of 121201300230231 in words is "one hundred twenty-one trillion, two hundred one billion, three hundred million, two hundred thirty thousand, two hundred thirty-one".
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