11103017231 has 2 divisors, whose sum is σ = 11103017232. Its totient is φ = 11103017230.

The previous prime is 11103017209. The next prime is 11103017243. The reversal of 11103017231 is 13271030111.

11103017231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11103017231 - 2¹⁴ = 11103000847 is a prime.

It is a super-2 number, since 2×11103017231² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11103017201) 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, 5551508615 + 5551508616.

It is an arithmetic number, because the mean of its divisors is an integer number (5551508616).

Almost surely, 2^11103017231 is an apocalyptic number.

11103017231 is a deficient number, since it is larger than the sum of its proper divisors (1).

11103017231 is an equidigital number, since it uses as much as digits as its factorization.

11103017231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 20.

Adding to 11103017231 its reverse (13271030111), we get a palindrome (24374047342).

The spelling of 11103017231 in words is "eleven billion, one hundred three million, seventeen thousand, two hundred thirty-one".