111013213 has 4 divisors (see below), whose sum is σ = 117543420. Its totient is φ = 104483008.

The previous prime is 111013187. The next prime is 111013223. The reversal of 111013213 is 312310111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57108249 + 53904964 = 7557^2 + 7342^2 .

It is a cyclic number.

It is not a de Polignac number, because 111013213 - 2¹⁷ = 110882141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111013193 and 111013202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111013223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3265078 + ... + 3265111.

It is an arithmetic number, because the mean of its divisors is an integer number (29385855).

Almost surely, 2^111013213 is an apocalyptic number.

It is an amenable number.

111013213 is a deficient number, since it is larger than the sum of its proper divisors (6530207).

111013213 is an equidigital number, since it uses as much as digits as its factorization.

111013213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6530206.

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

The square root of 111013213 is about 10536.2807954230. The cubic root of 111013213 is about 480.6086217724.

Adding to 111013213 its reverse (312310111), we get a palindrome (423323324).

The spelling of 111013213 in words is "one hundred eleven million, thirteen thousand, two hundred thirteen".