12020530524 has 24 divisors (see below), whose sum is σ = 28188854400. Its totient is φ = 3986707824.

The previous prime is 12020530517. The next prime is 12020530541. The reversal of 12020530524 is 42503502021.

It is a junction number, because it is equal to n+sod(n) for n = 12020530494 and 12020530503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2514474 + ... + 2519249.

It is an arithmetic number, because the mean of its divisors is an integer number (1174535600).

Almost surely, 2^12020530524 is an apocalyptic number.

It is an amenable number.

12020530524 is an abundant number, since it is smaller than the sum of its proper divisors (16168323876).

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

12020530524 is a wasteful number, since it uses less digits than its factorization.

12020530524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5033929 (or 5033927 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The spelling of 12020530524 in words is "twelve billion, twenty million, five hundred thirty thousand, five hundred twenty-four".