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213311103389 is a prime number
BaseRepresentation
bin1100011010101001010…
…1010010000110011101
3202101121000110210120122
43012222111102012131
511443330120302024
6241554353124325
721261022314416
oct3065225220635
9671530423518
10213311103389
118251261419a
12354115596a5
1317165ca8807
14a477cb080d
155836d79d5e
hex31aa55219d

213311103389 has 2 divisors, whose sum is σ = 213311103390. Its totient is φ = 213311103388.

The previous prime is 213311103373. The next prime is 213311103391. The reversal of 213311103389 is 983301113312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160648656100 + 52662447289 = 400810^2 + 229483^2 .

It is a cyclic number.

It is not a de Polignac number, because 213311103389 - 24 = 213311103373 is a prime.

Together with 213311103391, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213311103329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106655551694 + 106655551695.

It is an arithmetic number, because the mean of its divisors is an integer number (106655551695).

Almost surely, 2213311103389 is an apocalyptic number.

It is an amenable number.

213311103389 is a deficient number, since it is larger than the sum of its proper divisors (1).

213311103389 is an equidigital number, since it uses as much as digits as its factorization.

213311103389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 35.

The spelling of 213311103389 in words is "two hundred thirteen billion, three hundred eleven million, one hundred three thousand, three hundred eighty-nine".