Search a number
-
+
120220310311 is a prime number
BaseRepresentation
bin110111111110110110…
…0000101101100100111
3102111022100201112102121
41233331230011230213
53432202344412221
6131121202250411
711454112530343
oct1577554055447
9374270645377
10120220310311
1146a9225a562
121b371656a07
13b44ba330ba
145b666d4623
1531d94c2a41
hex1bfdb05b27

120220310311 has 2 divisors, whose sum is σ = 120220310312. Its totient is φ = 120220310310.

The previous prime is 120220310293. The next prime is 120220310323. The reversal of 120220310311 is 113013022021.

It is a strong prime.

It is an emirp because it is prime and its reverse (113013022021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120220310311 - 27 = 120220310183 is a prime.

It is a super-2 number, since 2×1202203103112 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120220310351) 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 as a sum of consecutive naturals, namely, 60110155155 + 60110155156.

It is an arithmetic number, because the mean of its divisors is an integer number (60110155156).

Almost surely, 2120220310311 is an apocalyptic number.

120220310311 is a deficient number, since it is larger than the sum of its proper divisors (1).

120220310311 is an equidigital number, since it uses as much as digits as its factorization.

120220310311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 120220310311 its reverse (113013022021), we get a palindrome (233233332332).

The spelling of 120220310311 in words is "one hundred twenty billion, two hundred twenty million, three hundred ten thousand, three hundred eleven".