1100243453020 has 12 divisors (see below), whose sum is σ = 2310511251384. Its totient is φ = 440097381200.

The previous prime is 1100243453009. The next prime is 1100243453047. The reversal of 1100243453020 is 203543420011.

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 3 ways as a sum of consecutive naturals, for example, 27506086306 + ... + 27506086345.

It is an arithmetic number, because the mean of its divisors is an integer number (192542604282).

Almost surely, 2^{1100243453020} is an apocalyptic number.

1100243453020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100243453020 is an abundant number, since it is smaller than the sum of its proper divisors (1210267798364).

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

1100243453020 is a wasteful number, since it uses less digits than its factorization.

1100243453020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55012172660 (or 55012172658 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 1100243453020 its reverse (203543420011), we get a palindrome (1303786873031).

The spelling of 1100243453020 in words is "one trillion, one hundred billion, two hundred forty-three million, four hundred fifty-three thousand, twenty".