11211103320 has 64 divisors (see below), whose sum is σ = 33650903520. Its totient is φ = 2988063744.

The previous prime is 11211103297. The next prime is 11211103361. The reversal of 11211103320 is 2330111211.

It is a happy number.

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 11211103320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215722 + ... + 262598.

Almost surely, 2^11211103320 is an apocalyptic number.

11211103320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11211103320 is an abundant number, since it is smaller than the sum of its proper divisors (22439800200).

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

11211103320 is a wasteful number, since it uses less digits than its factorization.

11211103320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48884 (or 48880 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11211103320 its reverse (2330111211), we get a palindrome (13541214531).

The spelling of 11211103320 in words is "eleven billion, two hundred eleven million, one hundred three thousand, three hundred twenty".