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120321220213 is a prime number
BaseRepresentation
bin111000000001110110…
…1000001111001110101
3102111120101121021210101
41300003231001321311
53432404213021323
6131135205154101
711456446332325
oct1600355017165
9374511537711
10120321220213
1147034212677
121b39b3bb931
13b466904abc
145b75c81285
1531e32a6dad
hex1c03b41e75

120321220213 has 2 divisors, whose sum is σ = 120321220214. Its totient is φ = 120321220212.

The previous prime is 120321220211. The next prime is 120321220249. The reversal of 120321220213 is 312022123021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116422216849 + 3899003364 = 341207^2 + 62442^2 .

It is a cyclic number.

It is not a de Polignac number, because 120321220213 - 21 = 120321220211 is a prime.

Together with 120321220211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120321220211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60160610106 + 60160610107.

It is an arithmetic number, because the mean of its divisors is an integer number (60160610107).

Almost surely, 2120321220213 is an apocalyptic number.

It is an amenable number.

120321220213 is a deficient number, since it is larger than the sum of its proper divisors (1).

120321220213 is an equidigital number, since it uses as much as digits as its factorization.

120321220213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 120321220213 its reverse (312022123021), we get a palindrome (432343343234).

The spelling of 120321220213 in words is "one hundred twenty billion, three hundred twenty-one million, two hundred twenty thousand, two hundred thirteen".