Base | Representation |
---|---|
bin | 111000010110000111… |
… | …0100100110111010001 |
3 | 102120022202220220100222 |
4 | 1300230032210313101 |
5 | 3440302240242201 |
6 | 131330453322425 |
7 | 11512343255315 |
oct | 1605416446721 |
9 | 376282826328 |
10 | 121001102801 |
11 | 47352a71507 |
12 | 1b54b036415 |
13 | b54471c4a7 |
14 | 5bdc29db45 |
15 | 3232d0391b |
hex | 1c2c3a4dd1 |
121001102801 has 2 divisors, whose sum is σ = 121001102802. Its totient is φ = 121001102800.
The previous prime is 121001102779. The next prime is 121001102839. The reversal of 121001102801 is 108201100121.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 81964827025 + 39036275776 = 286295^2 + 197576^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-121001102801 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 121001102801.
It is not a weakly prime, because it can be changed into another prime (121001132801) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60500551400 + 60500551401.
It is an arithmetic number, because the mean of its divisors is an integer number (60500551401).
Almost surely, 2121001102801 is an apocalyptic number.
It is an amenable number.
121001102801 is a deficient number, since it is larger than the sum of its proper divisors (1).
121001102801 is an equidigital number, since it uses as much as digits as its factorization.
121001102801 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 32, while the sum is 17.
Adding to 121001102801 its reverse (108201100121), we get a palindrome (229202202922).
The spelling of 121001102801 in words is "one hundred twenty-one billion, one million, one hundred two thousand, eight hundred one".
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