11343521520 has 120 divisors (see below), whose sum is σ = 38577739200. Its totient is φ = 2986633728.

The previous prime is 11343521503. The next prime is 11343521521. The reversal of 11343521520 is 2512534311.

11343521520 is a `hidden beast` number, since 1 + 13 + 435 + 215 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×11343521520² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11343521521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42835 + ... + 156594.

It is an arithmetic number, because the mean of its divisors is an integer number (321481160).

Almost surely, 2^11343521520 is an apocalyptic number.

11343521520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11343521520 is an abundant number, since it is smaller than the sum of its proper divisors (27234217680).

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

11343521520 is a wasteful number, since it uses less digits than its factorization.

11343521520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199527 (or 199518 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The spelling of 11343521520 in words is "eleven billion, three hundred forty-three million, five hundred twenty-one thousand, five hundred twenty".