111216353 has 2 divisors, whose sum is σ = 111216354. Its totient is φ = 111216352.

The previous prime is 111216323. The next prime is 111216373. The reversal of 111216353 is 353612111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111154849 + 61504 = 10543^2 + 248^2 .

It is a cyclic number.

It is not a de Polignac number, because 111216353 - 2²⁰ = 110167777 is a prime.

It is not a weakly prime, because it can be changed into another prime (111216323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55608176 + 55608177.

It is an arithmetic number, because the mean of its divisors is an integer number (55608177).

Almost surely, 2^111216353 is an apocalyptic number.

It is an amenable number.

111216353 is a deficient number, since it is larger than the sum of its proper divisors (1).

111216353 is an equidigital number, since it uses as much as digits as its factorization.

111216353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 23.

The square root of 111216353 is about 10545.9164134749. The cubic root of 111216353 is about 480.9015939409.

Adding to 111216353 its reverse (353612111), we get a palindrome (464828464).

The spelling of 111216353 in words is "one hundred eleven million, two hundred sixteen thousand, three hundred fifty-three".