11103312031313 has 4 divisors (see below), whose sum is σ = 11312808484788. Its totient is φ = 10893815577840.

The previous prime is 11103312031267. The next prime is 11103312031327. The reversal of 11103312031313 is 31313021330111.

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 8069281059904 + 3034030971409 = 2840648^2 + 1741847^2 .

It is a cyclic number.

It is not a de Polignac number, because 11103312031313 - 2¹⁸ = 11103311769169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11103312031013) 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, 104748226658 + ... + 104748226763.

It is an arithmetic number, because the mean of its divisors is an integer number (2828202121197).

Almost surely, 2^{11103312031313} is an apocalyptic number.

It is an amenable number.

11103312031313 is a deficient number, since it is larger than the sum of its proper divisors (209496453475).

11103312031313 is an equidigital number, since it uses as much as digits as its factorization.

11103312031313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209496453474.

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 11103312031313 its reverse (31313021330111), we get a palindrome (42416333361424).

The spelling of 11103312031313 in words is "eleven trillion, one hundred three billion, three hundred twelve million, thirty-one thousand, three hundred thirteen".