1101566318803 has 2 divisors, whose sum is σ = 1101566318804. Its totient is φ = 1101566318802.

The previous prime is 1101566318681. The next prime is 1101566318843. The reversal of 1101566318803 is 3088136651011.

It is a strong prime.

It is an emirp because it is prime and its reverse (3088136651011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1101566318803 - 2²⁹ = 1101029447891 is a prime.

It is a super-3 number, since 3×1101566318803³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1101566318803.

It is not a weakly prime, because it can be changed into another prime (1101566318843) by changing a digit.

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 as a sum of consecutive naturals, namely, 550783159401 + 550783159402.

It is an arithmetic number, because the mean of its divisors is an integer number (550783159402).

Almost surely, 2^{1101566318803} is an apocalyptic number.

1101566318803 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101566318803 is an equidigital number, since it uses as much as digits as its factorization.

1101566318803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 43.

The spelling of 1101566318803 in words is "one trillion, one hundred one billion, five hundred sixty-six million, three hundred eighteen thousand, eight hundred three".