111240213 has 16 divisors (see below), whose sum is σ = 176879616. Its totient is φ = 60801840.

The previous prime is 111240209. The next prime is 111240263. The reversal of 111240213 is 312042111.

It is not a de Polignac number, because 111240213 - 2² = 111240209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111240192 and 111240201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111240263) 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 in 15 ways as a sum of consecutive naturals, for example, 114673 + ... + 115638.

It is an arithmetic number, because the mean of its divisors is an integer number (11054976).

Almost surely, 2^111240213 is an apocalyptic number.

It is an amenable number.

111240213 is a deficient number, since it is larger than the sum of its proper divisors (65639403).

111240213 is a wasteful number, since it uses less digits than its factorization.

111240213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230344.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 111240213 is about 10547.0475963655. The cubic root of 111240213 is about 480.9359818442.

Adding to 111240213 its reverse (312042111), we get a palindrome (423282324).

The spelling of 111240213 in words is "one hundred eleven million, two hundred forty thousand, two hundred thirteen".