111103445 has 8 divisors (see below), whose sum is σ = 135150936. Its totient is φ = 87664896.

The previous prime is 111103439. The next prime is 111103451. The reversal of 111103445 is 544301111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111103439) and next prime (111103451).

It can be written as a sum of positive squares in 4 ways, for example, as 37246609 + 73856836 = 6103^2 + 8594^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 111103445 - 2¹² = 111099349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151832 + ... + 152561.

It is an arithmetic number, because the mean of its divisors is an integer number (16893867).

Almost surely, 2^111103445 is an apocalyptic number.

It is an amenable number.

111103445 is a deficient number, since it is larger than the sum of its proper divisors (24047491).

111103445 is an equidigital number, since it uses as much as digits as its factorization.

111103445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304471.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 111103445 is about 10540.5618920435. The cubic root of 111103445 is about 480.7388000694.

Adding to 111103445 its reverse (544301111), we get a palindrome (655404556).

The spelling of 111103445 in words is "one hundred eleven million, one hundred three thousand, four hundred forty-five".