11011431023603 has 2 divisors, whose sum is σ = 11011431023604. Its totient is φ = 11011431023602.

The previous prime is 11011431023569. The next prime is 11011431023627. The reversal of 11011431023603 is 30632013411011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11011431023603 - 2³⁰ = 11010357281779 is a prime.

It is a super-3 number, since 3×11011431023603³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (11011431323603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505715511801 + 5505715511802.

It is an arithmetic number, because the mean of its divisors is an integer number (5505715511802).

Almost surely, 2^{11011431023603} is an apocalyptic number.

11011431023603 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011431023603 is an equidigital number, since it uses as much as digits as its factorization.

11011431023603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 11011431023603 its reverse (30632013411011), we get a palindrome (41643444434614).

The spelling of 11011431023603 in words is "eleven trillion, eleven billion, four hundred thirty-one million, twenty-three thousand, six hundred three".