11543355503 has 8 divisors (see below), whose sum is σ = 11560822080. Its totient is φ = 11525904000.

The previous prime is 11543355493. The next prime is 11543355541. The reversal of 11543355503 is 30555334511.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11543355503 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 (11543355553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3386426 + ... + 3389832.

It is an arithmetic number, because the mean of its divisors is an integer number (1445102760).

Almost surely, 2^11543355503 is an apocalyptic number.

11543355503 is a deficient number, since it is larger than the sum of its proper divisors (17466577).

11543355503 is a wasteful number, since it uses less digits than its factorization.

11543355503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7537.

The product of its (nonzero) digits is 67500, while the sum is 35.

The spelling of 11543355503 in words is "eleven billion, five hundred forty-three million, three hundred fifty-five thousand, five hundred three".