111030231013 has 4 divisors (see below), whose sum is σ = 119571018028. Its totient is φ = 102489444000.

The previous prime is 111030230999. The next prime is 111030231017. The reversal of 111030231013 is 310132030111.

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 12162119524 + 98868111489 = 110282^2 + 314433^2 .

It is a cyclic number.

It is not a de Polignac number, because 111030231013 - 2⁹ = 111030230501 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 (111030231017) 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, 4270393488 + ... + 4270393513.

It is an arithmetic number, because the mean of its divisors is an integer number (29892754507).

Almost surely, 2^111030231013 is an apocalyptic number.

111030231013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

111030231013 is a deficient number, since it is larger than the sum of its proper divisors (8540787015).

111030231013 is an equidigital number, since it uses as much as digits as its factorization.

111030231013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8540787014.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 111030231013 its reverse (310132030111), we get a palindrome (421162261124).

The spelling of 111030231013 in words is "one hundred eleven billion, thirty million, two hundred thirty-one thousand, thirteen".