1105244845820 has 12 divisors (see below), whose sum is σ = 2321014176264. Its totient is φ = 442097938320.

The previous prime is 1105244845811. The next prime is 1105244845853. The reversal of 1105244845820 is 285484425011.

It is a happy number.

It is a congruent number.

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, 27631121126 + ... + 27631121165.

It is an arithmetic number, because the mean of its divisors is an integer number (193417848022).

Almost surely, 2^{1105244845820} is an apocalyptic number.

1105244845820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1105244845820 is an abundant number, since it is smaller than the sum of its proper divisors (1215769330444).

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

1105244845820 is a wasteful number, since it uses less digits than its factorization.

1105244845820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55262242300 (or 55262242298 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 44.

The spelling of 1105244845820 in words is "one trillion, one hundred five billion, two hundred forty-four million, eight hundred forty-five thousand, eight hundred twenty".