116530321 has 2 divisors, whose sum is σ = 116530322. Its totient is φ = 116530320.

The previous prime is 116530319. The next prime is 116530327. The reversal of 116530321 is 123035611.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96825600 + 19704721 = 9840^2 + 4439^2 .

It is an emirp because it is prime and its reverse (123035611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 116530321 - 2¹ = 116530319 is a prime.

Together with 116530319, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 116530292 and 116530301.

It is not a weakly prime, because it can be changed into another prime (116530327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58265160 + 58265161.

It is an arithmetic number, because the mean of its divisors is an integer number (58265161).

Almost surely, 2^116530321 is an apocalyptic number.

It is an amenable number.

116530321 is a deficient number, since it is larger than the sum of its proper divisors (1).

116530321 is an equidigital number, since it uses as much as digits as its factorization.

116530321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 116530321 is about 10794.9210742830. The cubic root of 116530321 is about 488.4419775847.

Adding to 116530321 its reverse (123035611), we get a palindrome (239565932).

The spelling of 116530321 in words is "one hundred sixteen million, five hundred thirty thousand, three hundred twenty-one".