117800213 has 2 divisors, whose sum is σ = 117800214. Its totient is φ = 117800212.

The previous prime is 117800201. The next prime is 117800231. The reversal of 117800213 is 312008711.

It is a happy number.

Together with next prime (117800231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116596804 + 1203409 = 10798^2 + 1097^2 .

It is a cyclic number.

It is not a de Polignac number, because 117800213 - 2⁴ = 117800197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117808213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58900106 + 58900107.

It is an arithmetic number, because the mean of its divisors is an integer number (58900107).

Almost surely, 2^117800213 is an apocalyptic number.

It is an amenable number.

117800213 is a deficient number, since it is larger than the sum of its proper divisors (1).

117800213 is an equidigital number, since it uses as much as digits as its factorization.

117800213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 117800213 is about 10853.5806534065. The cubic root of 117800213 is about 490.2098407081.

Adding to 117800213 its reverse (312008711), we get a palindrome (429808924).

The spelling of 117800213 in words is "one hundred seventeen million, eight hundred thousand, two hundred thirteen".