1105244321 has 4 divisors (see below), whose sum is σ = 1106020272. Its totient is φ = 1104468372.

The previous prime is 1105244311. The next prime is 1105244347. The reversal of 1105244321 is 1234425011.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1234425011 = 709 ⋅1741079.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1105244321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1105244311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385835 + ... + 388688.

It is an arithmetic number, because the mean of its divisors is an integer number (276505068).

Almost surely, 2^1105244321 is an apocalyptic number.

It is an amenable number.

1105244321 is a deficient number, since it is larger than the sum of its proper divisors (775951).

1105244321 is an equidigital number, since it uses as much as digits as its factorization.

1105244321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775950.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1105244321 is about 33245.2150090806. The cubic root of 1105244321 is about 1033.9180026563.

Adding to 1105244321 its reverse (1234425011), we get a palindrome (2339669332).

The spelling of 1105244321 in words is "one billion, one hundred five million, two hundred forty-four thousand, three hundred twenty-one".