111445204345 has 4 divisors (see below), whose sum is σ = 133734245220. Its totient is φ = 89156163472.

The previous prime is 111445204337. The next prime is 111445204357. The reversal of 111445204345 is 543402544111.

It is a happy number.

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 27714258576 + 83730945769 = 166476^2 + 289363^2 .

It is a cyclic number.

It is not a de Polignac number, because 111445204345 - 2³ = 111445204337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111445204345.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11144520430 + ... + 11144520439.

It is an arithmetic number, because the mean of its divisors is an integer number (33433561305).

Almost surely, 2^111445204345 is an apocalyptic number.

It is an amenable number.

111445204345 is a deficient number, since it is larger than the sum of its proper divisors (22289040875).

111445204345 is an equidigital number, since it uses as much as digits as its factorization.

111445204345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22289040874.

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 111445204345 its reverse (543402544111), we get a palindrome (654847748456).

The spelling of 111445204345 in words is "one hundred eleven billion, four hundred forty-five million, two hundred four thousand, three hundred forty-five".