111243353 has 4 divisors (see below), whose sum is σ = 119800548. Its totient is φ = 102686160.

The previous prime is 111243337. The next prime is 111243389. The reversal of 111243353 is 353342111.

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 49730704 + 61512649 = 7052^2 + 7843^2 .

It is a cyclic number.

It is not a de Polignac number, because 111243353 - 2⁴ = 111243337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111243553) 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, 4278578 + ... + 4278603.

It is an arithmetic number, because the mean of its divisors is an integer number (29950137).

Almost surely, 2^111243353 is an apocalyptic number.

111243353 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

111243353 is a deficient number, since it is larger than the sum of its proper divisors (8557195).

111243353 is an equidigital number, since it uses as much as digits as its factorization.

111243353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8557194.

The product of its digits is 1080, while the sum is 23.

The square root of 111243353 is about 10547.1964521384. The cubic root of 111243353 is about 480.9405069607.

Adding to 111243353 its reverse (353342111), we get a palindrome (464585464).

The spelling of 111243353 in words is "one hundred eleven million, two hundred forty-three thousand, three hundred fifty-three".