1103323113181 has 2 divisors, whose sum is σ = 1103323113182. Its totient is φ = 1103323113180.

The previous prime is 1103323113173. The next prime is 1103323113199. The reversal of 1103323113181 is 1813113233011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1101502725625 + 1820387556 = 1049525^2 + 42666^2 .

It is an emirp because it is prime and its reverse (1813113233011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1103323113181 - 2³ = 1103323113173 is a prime.

It is a super-2 number, since 2×1103323113181² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1103323113121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551661556590 + 551661556591.

It is an arithmetic number, because the mean of its divisors is an integer number (551661556591).

Almost surely, 2^{1103323113181} is an apocalyptic number.

It is an amenable number.

1103323113181 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103323113181 is an equidigital number, since it uses as much as digits as its factorization.

1103323113181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

Adding to 1103323113181 its reverse (1813113233011), we get a palindrome (2916436346192).

The spelling of 1103323113181 in words is "one trillion, one hundred three billion, three hundred twenty-three million, one hundred thirteen thousand, one hundred eighty-one".