Base | Representation |
---|---|
bin | 111000010110000111… |
… | …0010011000111010101 |
3 | 102120022202210012122101 |
4 | 1300230032103013111 |
5 | 3440302230430401 |
6 | 131330452002101 |
7 | 11512342533340 |
oct | 1605416230725 |
9 | 376282705571 |
10 | 121001030101 |
11 | 47352a21926 |
12 | 1b54b000331 |
13 | b5446c5383 |
14 | 5bdc281457 |
15 | 3232cdc101 |
hex | 1c2c3931d5 |
121001030101 has 32 divisors (see below), whose sum is σ = 147981247488. Its totient is φ = 96575846400.
The previous prime is 121001030081. The next prime is 121001030231. The reversal of 121001030101 is 101030100121.
It is a cyclic number.
It is not a de Polignac number, because 121001030101 - 25 = 121001030069 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121001030401) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21066436 + ... + 21072178.
It is an arithmetic number, because the mean of its divisors is an integer number (4624413984).
Almost surely, 2121001030101 is an apocalyptic number.
It is an amenable number.
121001030101 is a deficient number, since it is larger than the sum of its proper divisors (26980217387).
121001030101 is a wasteful number, since it uses less digits than its factorization.
121001030101 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7621.
The product of its (nonzero) digits is 6, while the sum is 10.
Adding to 121001030101 its reverse (101030100121), we get a palindrome (222031130222).
The spelling of 121001030101 in words is "one hundred twenty-one billion, one million, thirty thousand, one hundred one".
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