1112311103213 has 4 divisors (see below), whose sum is σ = 1142373565500. Its totient is φ = 1082248640928.

The previous prime is 1112311103173. The next prime is 1112311103237. The reversal of 1112311103213 is 3123011132111.

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 604322773924 + 507988329289 = 777382^2 + 712733^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112311103213 - 2⁸ = 1112311102957 is a prime.

It is a super-2 number, since 2×1112311103213² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112311103713) 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, 15031231088 + ... + 15031231161.

It is an arithmetic number, because the mean of its divisors is an integer number (285593391375).

Almost surely, 2^{1112311103213} is an apocalyptic number.

It is an amenable number.

1112311103213 is a deficient number, since it is larger than the sum of its proper divisors (30062462287).

1112311103213 is an equidigital number, since it uses as much as digits as its factorization.

1112311103213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30062462286.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 1112311103213 its reverse (3123011132111), we get a palindrome (4235322235324).

The spelling of 1112311103213 in words is "one trillion, one hundred twelve billion, three hundred eleven million, one hundred three thousand, two hundred thirteen".