111310213 has 6 divisors (see below), whose sum is σ = 129483366. Its totient is φ = 95408712.

The previous prime is 111310211. The next prime is 111310219. The reversal of 111310213 is 312013111.

It can be written as a sum of positive squares in only one way, i.e., 109369764 + 1940449 = 10458^2 + 1393^2 .

It is not a de Polignac number, because 111310213 - 2¹ = 111310211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111310193 and 111310202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111310211) 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 in 5 ways as a sum of consecutive naturals, for example, 1135770 + ... + 1135867.

It is an arithmetic number, because the mean of its divisors is an integer number (21580561).

Almost surely, 2^111310213 is an apocalyptic number.

It is an amenable number.

111310213 is a deficient number, since it is larger than the sum of its proper divisors (18173153).

111310213 is an equidigital number, since it uses as much as digits as its factorization.

111310213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271651 (or 2271644 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 111310213 is about 10550.3655386911. The cubic root of 111310213 is about 481.0368400343.

Adding to 111310213 its reverse (312013111), we get a palindrome (423323324).

The spelling of 111310213 in words is "one hundred eleven million, three hundred ten thousand, two hundred thirteen".