111343553 has 4 divisors (see below), whose sum is σ = 117203760. Its totient is φ = 105483348.

The previous prime is 111343543. The next prime is 111343597. The reversal of 111343553 is 355343111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111343553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111343543) 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, 2930075 + ... + 2930112.

It is an arithmetic number, because the mean of its divisors is an integer number (29300940).

Almost surely, 2^111343553 is an apocalyptic number.

It is an amenable number.

111343553 is a deficient number, since it is larger than the sum of its proper divisors (5860207).

111343553 is an equidigital number, since it uses as much as digits as its factorization.

111343553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5860206.

The product of its digits is 2700, while the sum is 26.

The square root of 111343553 is about 10551.9454604352. The cubic root of 111343553 is about 481.0848624839.

Adding to 111343553 its reverse (355343111), we get a palindrome (466686664).

The spelling of 111343553 in words is "one hundred eleven million, three hundred forty-three thousand, five hundred fifty-three".