111312031013103 has 8 divisors (see below), whose sum is σ = 148416996582448. Its totient is φ = 74207543059584.

The previous prime is 111312031013101. The next prime is 111312031013123. The reversal of 111312031013103 is 301310130213111.

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

It is not a de Polignac number, because 111312031013103 - 2¹ = 111312031013101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111312031013103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111312031013101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118859800 + ... + 119792637.

It is an arithmetic number, because the mean of its divisors is an integer number (18552124572806).

Almost surely, 2^{111312031013103} is an apocalyptic number.

111312031013103 is a deficient number, since it is larger than the sum of its proper divisors (37104965569345).

111312031013103 is a wasteful number, since it uses less digits than its factorization.

111312031013103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238807913.

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 111312031013103 its reverse (301310130213111), we get a palindrome (412622161226214).

The spelling of 111312031013103 in words is "one hundred eleven trillion, three hundred twelve billion, thirty-one million, thirteen thousand, one hundred three".