11530503502 has 24 divisors (see below), whose sum is σ = 20297620656. Its totient is φ = 4897908288.

The previous prime is 11530503499. The next prime is 11530503577. The reversal of 11530503502 is 20530503511.

11530503502 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11530503502² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 509538 + ... + 531685.

It is an arithmetic number, because the mean of its divisors is an integer number (845734194).

Almost surely, 2^11530503502 is an apocalyptic number.

11530503502 is a deficient number, since it is larger than the sum of its proper divisors (8767117154).

11530503502 is a wasteful number, since it uses less digits than its factorization.

11530503502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041352 (or 1041345 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 25.

Subtracting 11530503502 from its reverse (20530503511), we obtain a palindrome (9000000009).

The spelling of 11530503502 in words is "eleven billion, five hundred thirty million, five hundred three thousand, five hundred two".