11001403320 has 64 divisors (see below), whose sum is σ = 33011500320. Its totient is φ = 2933059584.

The previous prime is 11001403279. The next prime is 11001403337. The reversal of 11001403320 is 2330410011.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11001403320.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 813252 + ... + 826668.

Almost surely, 2^11001403320 is an apocalyptic number.

11001403320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11001403320 is an abundant number, since it is smaller than the sum of its proper divisors (22010097000).

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

11001403320 is a wasteful number, since it uses less digits than its factorization.

11001403320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20264 (or 20260 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 11001403320 its reverse (2330410011), we get a palindrome (13331813331).

The spelling of 11001403320 in words is "eleven billion, one million, four hundred three thousand, three hundred twenty".