111243013 has 8 divisors (see below), whose sum is σ = 128926080. Its totient is φ = 94007760.

The previous prime is 111243007. The next prime is 111243029. The reversal of 111243013 is 310342111.

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

It is not a de Polignac number, because 111243013 - 2⁹ = 111242501 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 (111243113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111418 + ... + 112411.

It is an arithmetic number, because the mean of its divisors is an integer number (16115760).

Almost surely, 2^111243013 is an apocalyptic number.

It is an amenable number.

111243013 is a deficient number, since it is larger than the sum of its proper divisors (17683067).

111243013 is an equidigital number, since it uses as much as digits as its factorization.

111243013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223907.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 111243013 is about 10547.1803340988. The cubic root of 111243013 is about 480.9400169841.

Adding to 111243013 its reverse (310342111), we get a palindrome (421585124).

The spelling of 111243013 in words is "one hundred eleven million, two hundred forty-three thousand, thirteen".