11503133445 has 8 divisors (see below), whose sum is σ = 18405013536. Its totient is φ = 6135004496.

The previous prime is 11503133443. The next prime is 11503133489. The reversal of 11503133445 is 54433130511.

11503133445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11503133445 - 2¹ = 11503133443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11503133443) 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 in 7 ways as a sum of consecutive naturals, for example, 383437767 + ... + 383437796.

It is an arithmetic number, because the mean of its divisors is an integer number (2300626692).

Almost surely, 2^11503133445 is an apocalyptic number.

11503133445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11503133445 is a deficient number, since it is larger than the sum of its proper divisors (6901880091).

11503133445 is an equidigital number, since it uses as much as digits as its factorization.

11503133445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766875571.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 11503133445 its reverse (54433130511), we get a palindrome (65936263956).

The spelling of 11503133445 in words is "eleven billion, five hundred three million, one hundred thirty-three thousand, four hundred forty-five".