11133552503 has 4 divisors (see below), whose sum is σ = 11133776088. Its totient is φ = 11133328920.

The previous prime is 11133552497. The next prime is 11133552509. The reversal of 11133552503 is 30525533111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (11133552497) and next prime (11133552509).

It is a cyclic number.

It is not a de Polignac number, because 11133552503 - 2²⁴ = 11116775287 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 (11133552509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500 + ... + 149222.

It is an arithmetic number, because the mean of its divisors is an integer number (2783444022).

Almost surely, 2^11133552503 is an apocalyptic number.

11133552503 is a deficient number, since it is larger than the sum of its proper divisors (223585).

11133552503 is an equidigital number, since it uses as much as digits as its factorization.

11133552503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223584.

The product of its (nonzero) digits is 6750, while the sum is 29.

The spelling of 11133552503 in words is "eleven billion, one hundred thirty-three million, five hundred fifty-two thousand, five hundred three".