11321011003 has 4 divisors (see below), whose sum is σ = 11327044320. Its totient is φ = 11314977688.

The previous prime is 11321010997. The next prime is 11321011049. The reversal of 11321011003 is 30011012311.

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

It is a cyclic number.

It is not a de Polignac number, because 11321011003 - 2¹³ = 11321002811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11321011703) 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, 3013843 + ... + 3017596.

It is an arithmetic number, because the mean of its divisors is an integer number (2831761080).

Almost surely, 2^11321011003 is an apocalyptic number.

11321011003 is a deficient number, since it is larger than the sum of its proper divisors (6033317).

11321011003 is an equidigital number, since it uses as much as digits as its factorization.

11321011003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6033316.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 11321011003 its reverse (30011012311), we get a palindrome (41332023314).

The spelling of 11321011003 in words is "eleven billion, three hundred twenty-one million, eleven thousand, three".