11533241220 has 48 divisors (see below), whose sum is σ = 32655934080. Its totient is φ = 3040973056.

The previous prime is 11533241191. The next prime is 11533241249. The reversal of 11533241220 is 2214233511.

It is an interprime number because it is at equal distance from previous prime (11533241191) and next prime (11533241249).

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, 1074552 + ... + 1085231.

It is an arithmetic number, because the mean of its divisors is an integer number (680331960).

Almost surely, 2^11533241220 is an apocalyptic number.

11533241220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11533241220 is an abundant number, since it is smaller than the sum of its proper divisors (21122692860).

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

11533241220 is a wasteful number, since it uses less digits than its factorization.

11533241220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159884 (or 2159882 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 11533241220 its reverse (2214233511), we get a palindrome (13747474731).

The spelling of 11533241220 in words is "eleven billion, five hundred thirty-three million, two hundred forty-one thousand, two hundred twenty".