11181181103 has 2 divisors, whose sum is σ = 11181181104. Its totient is φ = 11181181102.

The previous prime is 11181181097. The next prime is 11181181117. The reversal of 11181181103 is 30118118111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11181181103 - 2¹⁴ = 11181164719 is a prime.

It is a super-3 number, since 3×11181181103³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11181181183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5590590551 + 5590590552.

It is an arithmetic number, because the mean of its divisors is an integer number (5590590552).

Almost surely, 2^11181181103 is an apocalyptic number.

11181181103 is a deficient number, since it is larger than the sum of its proper divisors (1).

11181181103 is an equidigital number, since it uses as much as digits as its factorization.

11181181103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 26.

Adding to 11181181103 its reverse (30118118111), we get a palindrome (41299299214).

The spelling of 11181181103 in words is "eleven billion, one hundred eighty-one million, one hundred eighty-one thousand, one hundred three".