111306143 has 8 divisors (see below), whose sum is σ = 120036336. Its totient is φ = 102600000.

The previous prime is 111306121. The next prime is 111306163. The reversal of 111306143 is 341603111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111306143 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 (111306163) 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, 4268 + ... + 15518.

It is an arithmetic number, because the mean of its divisors is an integer number (15004542).

Almost surely, 2^111306143 is an apocalyptic number.

111306143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

111306143 is a deficient number, since it is larger than the sum of its proper divisors (8730193).

111306143 is a wasteful number, since it uses less digits than its factorization.

111306143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12025.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 111306143 is about 10550.1726526157. The cubic root of 111306143 is about 481.0309770090.

Adding to 111306143 its reverse (341603111), we get a palindrome (452909254).

The spelling of 111306143 in words is "one hundred eleven million, three hundred six thousand, one hundred forty-three".