11003313012 has 12 divisors (see below), whose sum is σ = 25674397056. Its totient is φ = 3667771000.

The previous prime is 11003312989. The next prime is 11003313017. The reversal of 11003313012 is 21031330011.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 11003312982 and 11003313000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11003313017) 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, 458471364 + ... + 458471387.

It is an arithmetic number, because the mean of its divisors is an integer number (2139533088).

Almost surely, 2^11003313012 is an apocalyptic number.

11003313012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11003313012 is an abundant number, since it is smaller than the sum of its proper divisors (14671084044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11003313012 is a wasteful number, since it uses less digits than its factorization.

11003313012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916942758 (or 916942756 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 11003313012 its reverse (21031330011), we get a palindrome (32034643023).

The spelling of 11003313012 in words is "eleven billion, three million, three hundred thirteen thousand, twelve".