1113112213 has 8 divisors (see below), whose sum is σ = 1190260440. Its totient is φ = 1037260800.

The previous prime is 1113112193. The next prime is 1113112261. The reversal of 1113112213 is 3122113111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 832784164 + 280328049 = 28858^2 + 16743^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1113112213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113112313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322428 + ... + 325861.

It is an arithmetic number, because the mean of its divisors is an integer number (148782555).

Almost surely, 2^1113112213 is an apocalyptic number.

It is an amenable number.

1113112213 is a deficient number, since it is larger than the sum of its proper divisors (77148227).

1113112213 is a wasteful number, since it uses less digits than its factorization.

1113112213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648407.

The product of its digits is 36, while the sum is 16.

The square root of 1113112213 is about 33363.3363589435. The cubic root of 1113112213 is about 1036.3655846291.

Adding to 1113112213 its reverse (3122113111), we get a palindrome (4235225324).

The spelling of 1113112213 in words is "one billion, one hundred thirteen million, one hundred twelve thousand, two hundred thirteen".