11003304312 has 192 divisors, whose sum is σ = 40012277760. Its totient is φ = 2638137600.

The previous prime is 11003304283. The next prime is 11003304343. The reversal of 11003304312 is 21340330011.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4264 + ... + 148407.

It is an arithmetic number, because the mean of its divisors is an integer number (208397280).

Almost surely, 2^11003304312 is an apocalyptic number.

11003304312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11003304312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20006138880).

11003304312 is an abundant number, since it is smaller than the sum of its proper divisors (29008973448).

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

11003304312 is a wasteful number, since it uses less digits than its factorization.

11003304312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152714 (or 152707 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 11003304312 its reverse (21340330011), we get a palindrome (32343634323).

The spelling of 11003304312 in words is "eleven billion, three million, three hundred four thousand, three hundred twelve".