11453113503 has 80 divisors (see below), whose sum is σ = 19597818240. Its totient is φ = 6603254784.

The previous prime is 11453113487. The next prime is 11453113513. The reversal of 11453113503 is 30531135411.

It is a happy number.

11453113503 is a `hidden beast` number, since 1 + 1 + 45 + 3 + 113 + 503 = 666.

11453113503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11453113503 - 2⁴ = 11453113487 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11453113513) 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 79 ways as a sum of consecutive naturals, for example, 4277001 + ... + 4279677.

It is an arithmetic number, because the mean of its divisors is an integer number (244972728).

Almost surely, 2^11453113503 is an apocalyptic number.

11453113503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11453113503 is a deficient number, since it is larger than the sum of its proper divisors (8144704737).

11453113503 is a wasteful number, since it uses less digits than its factorization.

11453113503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2958 (or 2949 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

Adding to 11453113503 its reverse (30531135411), we get a palindrome (41984248914).

The spelling of 11453113503 in words is "eleven billion, four hundred fifty-three million, one hundred thirteen thousand, five hundred three".