11503545035103 has 24 divisors (see below), whose sum is σ = 18914919903360. Its totient is φ = 6668721758160.

The previous prime is 11503545035077. The next prime is 11503545035113. The reversal of 11503545035103 is 30153054530511.

11503545035103 is a `hidden beast` number, since 1 + 1 + 5 + 0 + 3 + 545 + 0 + 3 + 5 + 103 = 666.

It is not a de Polignac number, because 11503545035103 - 2⁵ = 11503545035071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11503545035113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2526028693 + ... + 2526033246.

It is an arithmetic number, because the mean of its divisors is an integer number (788121662640).

Almost surely, 2^{11503545035103} is an apocalyptic number.

11503545035103 is a deficient number, since it is larger than the sum of its proper divisors (7411374868257).

11503545035103 is a wasteful number, since it uses less digits than its factorization.

11503545035103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5052061979 (or 5052061976 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

Adding to 11503545035103 its reverse (30153054530511), we get a palindrome (41656599565614).

The spelling of 11503545035103 in words is "eleven trillion, five hundred three billion, five hundred forty-five million, thirty-five thousand, one hundred three".