1100012787803 has 2 divisors, whose sum is σ = 1100012787804. Its totient is φ = 1100012787802.

The previous prime is 1100012787779. The next prime is 1100012787859. The reversal of 1100012787803 is 3087872100011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1100012787803 - 2¹⁰ = 1100012786779 is a prime.

It is a super-3 number, since 3×1100012787803³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1100012784803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550006393901 + 550006393902.

It is an arithmetic number, because the mean of its divisors is an integer number (550006393902).

Almost surely, 2^{1100012787803} is an apocalyptic number.

1100012787803 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100012787803 is an equidigital number, since it uses as much as digits as its factorization.

1100012787803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 38.

Adding to 1100012787803 its reverse (3087872100011), we get a palindrome (4187884887814).

The spelling of 1100012787803 in words is "one trillion, one hundred billion, twelve million, seven hundred eighty-seven thousand, eight hundred three".