11530564012 has 12 divisors (see below), whose sum is σ = 22012895016. Its totient is φ = 5241165440.

The previous prime is 11530564009. The next prime is 11530564013. The reversal of 11530564012 is 21046503511.

It is a super-2 number, since 2×11530564012² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11530564013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131029093 + ... + 131029180.

It is an arithmetic number, because the mean of its divisors is an integer number (1834407918).

Almost surely, 2^11530564012 is an apocalyptic number.

It is an amenable number.

11530564012 is a deficient number, since it is larger than the sum of its proper divisors (10482331004).

11530564012 is a wasteful number, since it uses less digits than its factorization.

11530564012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262058288 (or 262058286 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 11530564012 in words is "eleven billion, five hundred thirty million, five hundred sixty-four thousand, twelve".