11242355503 has 4 divisors (see below), whose sum is σ = 11243856240. Its totient is φ = 11240854768.

The previous prime is 11242355479. The next prime is 11242355567. The reversal of 11242355503 is 30555324211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30555324211 = 23 ⋅1328492357.

It is a cyclic number.

It is not a de Polignac number, because 11242355503 - 2⁵ = 11242355471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11242355603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 739075 + ... + 754132.

It is an arithmetic number, because the mean of its divisors is an integer number (2810964060).

Almost surely, 2^11242355503 is an apocalyptic number.

11242355503 is a deficient number, since it is larger than the sum of its proper divisors (1500737).

11242355503 is an equidigital number, since it uses as much as digits as its factorization.

11242355503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500736.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 11242355503 its reverse (30555324211), we get a palindrome (41797679714).

The spelling of 11242355503 in words is "eleven billion, two hundred forty-two million, three hundred fifty-five thousand, five hundred three".