1100115533543 has 16 divisors (see below), whose sum is σ = 1202493210240. Its totient is φ = 1000275842016.

The previous prime is 1100115533537. The next prime is 1100115533549. The reversal of 1100115533543 is 3453355110011.

It is an interprime number because it is at equal distance from previous prime (1100115533537) and next prime (1100115533549).

It is a cyclic number.

It is not a de Polignac number, because 1100115533543 - 2⁶ = 1100115533479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100115533549) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 22924268 + ... + 22972206.

It is an arithmetic number, because the mean of its divisors is an integer number (75155825640).

Almost surely, 2^{1100115533543} is an apocalyptic number.

1100115533543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1100115533543 is a deficient number, since it is larger than the sum of its proper divisors (102377676697).

1100115533543 is a wasteful number, since it uses less digits than its factorization.

1100115533543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74366.

The product of its (nonzero) digits is 13500, while the sum is 32.

The spelling of 1100115533543 in words is "one trillion, one hundred billion, one hundred fifteen million, five hundred thirty-three thousand, five hundred forty-three".