Search a number
-
+
121230223201169 is a prime number
BaseRepresentation
bin11011100100001000011100…
…011000111101001110010001
3120220020111101200202211201222
4123210020130120331032101
5111342213444114414134
61105500221245334425
734351410641644265
oct3344103430751621
9526214350684658
10121230223201169
113569a4a3593705
121171b290567415
135284c653c8264
1421d18075040a5
15e03722858a2e
hex6e421c63d391

121230223201169 has 2 divisors, whose sum is σ = 121230223201170. Its totient is φ = 121230223201168.

The previous prime is 121230223201141. The next prime is 121230223201247. The reversal of 121230223201169 is 961102322032121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74259582760000 + 46970640441169 = 8617400^2 + 6853513^2 .

It is an emirp because it is prime and its reverse (961102322032121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121230223201169 - 236 = 121161503724433 is a prime.

It is a super-2 number, since 2×1212302232011692 (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121230223201469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60615111600584 + 60615111600585.

It is an arithmetic number, because the mean of its divisors is an integer number (60615111600585).

Almost surely, 2121230223201169 is an apocalyptic number.

It is an amenable number.

121230223201169 is a deficient number, since it is larger than the sum of its proper divisors (1).

121230223201169 is an equidigital number, since it uses as much as digits as its factorization.

121230223201169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 35.

The spelling of 121230223201169 in words is "one hundred twenty-one trillion, two hundred thirty billion, two hundred twenty-three million, two hundred one thousand, one hundred sixty-nine".