216311107 has 2 divisors, whose sum is σ = 216311108. Its totient is φ = 216311106.

The previous prime is 216311101. The next prime is 216311153. The reversal of 216311107 is 701113612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216311107 - 2¹⁵ = 216278339 is a prime.

It is not a weakly prime, because it can be changed into another prime (216311101) 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, 108155553 + 108155554.

It is an arithmetic number, because the mean of its divisors is an integer number (108155554).

Almost surely, 2^216311107 is an apocalyptic number.

216311107 is a deficient number, since it is larger than the sum of its proper divisors (1).

216311107 is an equidigital number, since it uses as much as digits as its factorization.

216311107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 216311107 is about 14707.5187234285. The cubic root of 216311107 is about 600.2879238480.

Adding to 216311107 its reverse (701113612), we get a palindrome (917424719).

The spelling of 216311107 in words is "two hundred sixteen million, three hundred eleven thousand, one hundred seven".