1105243320 has 64 divisors (see below), whose sum is σ = 3331520640. Its totient is φ = 293328000.

The previous prime is 1105243309. The next prime is 1105243327. The reversal of 1105243320 is 233425011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105243327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3495 + ... + 47145.

It is an arithmetic number, because the mean of its divisors is an integer number (52055010).

Almost surely, 2^1105243320 is an apocalyptic number.

1105243320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1105243320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1665760320).

1105243320 is an abundant number, since it is smaller than the sum of its proper divisors (2226277320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1105243320 is a wasteful number, since it uses less digits than its factorization.

1105243320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43876 (or 43872 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1105243320 is about 33245.1999542791. The cubic root of 1105243320 is about 1033.9176905225.

Adding to 1105243320 its reverse (233425011), we get a palindrome (1338668331).

The spelling of 1105243320 in words is "one billion, one hundred five million, two hundred forty-three thousand, three hundred twenty".