11312331103 has 4 divisors (see below), whose sum is σ = 11393714920. Its totient is φ = 11230947288.

The previous prime is 11312331091. The next prime is 11312331113. The reversal of 11312331103 is 30113321311.

11312331103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30113321311 = 17551 ⋅1715761.

It is a cyclic number.

It is not a de Polignac number, because 11312331103 - 2⁹ = 11312330591 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 (11312331113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40691700 + ... + 40691977.

It is an arithmetic number, because the mean of its divisors is an integer number (2848428730).

Almost surely, 2^11312331103 is an apocalyptic number.

11312331103 is a deficient number, since it is larger than the sum of its proper divisors (81383817).

11312331103 is an equidigital number, since it uses as much as digits as its factorization.

11312331103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81383816.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 11312331103 its reverse (30113321311), we get a palindrome (41425652414).

The spelling of 11312331103 in words is "eleven billion, three hundred twelve million, three hundred thirty-one thousand, one hundred three".