1112311213 has 8 divisors (see below), whose sum is σ = 1198156568. Its totient is φ = 1026506304.

The previous prime is 1112311201. The next prime is 1112311223. The reversal of 1112311213 is 3121132111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 63393444 + 1048917769 = 7962^2 + 32387^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1112311213 - 2¹⁷ = 1112180141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112311223) 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 7 ways as a sum of consecutive naturals, for example, 71395 + ... + 85567.

It is an arithmetic number, because the mean of its divisors is an integer number (149769571).

Almost surely, 2^1112311213 is an apocalyptic number.

1112311213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1112311213 is a deficient number, since it is larger than the sum of its proper divisors (85845355).

1112311213 is a wasteful number, since it uses less digits than its factorization.

1112311213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20223.

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

The square root of 1112311213 is about 33351.3300034646. The cubic root of 1112311213 is about 1036.1169340365.

Adding to 1112311213 its reverse (3121132111), we get a palindrome (4233443324).

The spelling of 1112311213 in words is "one billion, one hundred twelve million, three hundred eleven thousand, two hundred thirteen".