111343013 has 4 divisors (see below), whose sum is σ = 117892620. Its totient is φ = 104793408.

The previous prime is 111343009. The next prime is 111343019. The reversal of 111343013 is 310343111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310343111 = 13 ⋅23872547.

It can be written as a sum of positive squares in 2 ways, for example, as 99660289 + 11682724 = 9983^2 + 3418^2 .

It is a cyclic number.

It is not a de Polignac number, because 111343013 - 2² = 111343009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 6549589 = 111343013 / (1 + 1 + 1 + 3 + 4 + 3 + 0 + 1 + 3).

It is a junction number, because it is equal to n+sod(n) for n = 111342982 and 111343000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111343019) 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, 3274778 + ... + 3274811.

It is an arithmetic number, because the mean of its divisors is an integer number (29473155).

Almost surely, 2^111343013 is an apocalyptic number.

It is an amenable number.

111343013 is a deficient number, since it is larger than the sum of its proper divisors (6549607).

111343013 is an equidigital number, since it uses as much as digits as its factorization.

111343013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6549606.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 111343013 is about 10551.9198727056. The cubic root of 111343013 is about 481.0840847522.

Adding to 111343013 its reverse (310343111), we get a palindrome (421686124).

The spelling of 111343013 in words is "one hundred eleven million, three hundred forty-three thousand, thirteen".