1110031321013 has 4 divisors (see below), whose sum is σ = 1110054442380. Its totient is φ = 1110008199648.

The previous prime is 1110031320953. The next prime is 1110031321043. The reversal of 1110031321013 is 3101231300111.

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 890971751569 + 219059569444 = 943913^2 + 468038^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110031321013 - 2⁸ = 1110031320757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1110031320982 and 1110031321000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110031321043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11488520 + ... + 11584737.

It is an arithmetic number, because the mean of its divisors is an integer number (277513610595).

Almost surely, 2^{1110031321013} is an apocalyptic number.

It is an amenable number.

1110031321013 is a deficient number, since it is larger than the sum of its proper divisors (23121367).

1110031321013 is an equidigital number, since it uses as much as digits as its factorization.

1110031321013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23121366.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 1110031321013 its reverse (3101231300111), we get a palindrome (4211262621124).

The spelling of 1110031321013 in words is "one trillion, one hundred ten billion, thirty-one million, three hundred twenty-one thousand, thirteen".