1100043022545 has 12 divisors (see below), whose sum is σ = 1906741239156. Its totient is φ = 586689612000.

The previous prime is 1100043022501. The next prime is 1100043022567. The reversal of 1100043022545 is 5452203400011.

1100043022545 is a `hidden beast` number, since 1 + 1 + 0 + 0 + 0 + 430 + 225 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 193495294161 + 906547728384 = 439881^2 + 952128^2 .

It is not a de Polignac number, because 1100043022545 - 2⁷ = 1100043022417 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 12222700206 + ... + 12222700295.

It is an arithmetic number, because the mean of its divisors is an integer number (158895103263).

Almost surely, 2^{1100043022545} is an apocalyptic number.

1100043022545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1100043022545 is a deficient number, since it is larger than the sum of its proper divisors (806698216611).

1100043022545 is a wasteful number, since it uses less digits than its factorization.

1100043022545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24445400512 (or 24445400509 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 1100043022545 its reverse (5452203400011), we get a palindrome (6552246422556).

The spelling of 1100043022545 in words is "one trillion, one hundred billion, forty-three million, twenty-two thousand, five hundred forty-five".