11520045530 has 48 divisors (see below), whose sum is σ = 24131520000. Its totient is φ = 3948100128.

The previous prime is 11520045527. The next prime is 11520045601. The reversal of 11520045530 is 3554002511.

It is a super-2 number, since 2×11520045530² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11520045530.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2301971 + ... + 2306969.

It is an arithmetic number, because the mean of its divisors is an integer number (502740000).

Almost surely, 2^11520045530 is an apocalyptic number.

11520045530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11520045530 is an abundant number, since it is smaller than the sum of its proper divisors (12611474470).

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

11520045530 is a wasteful number, since it uses less digits than its factorization.

11520045530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9723 (or 9716 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The spelling of 11520045530 in words is "eleven billion, five hundred twenty million, forty-five thousand, five hundred thirty".