20530535124 has 36 divisors (see below), whose sum is σ = 52655453312. Its totient is φ = 6221373840.

The previous prime is 20530535107. The next prime is 20530535131. The reversal of 20530535124 is 42153503502.

It is a junction number, because it is equal to n+sod(n) for n = 20530535091 and 20530535100.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 7068292 + ... + 7071195.

Almost surely, 2^20530535124 is an apocalyptic number.

It is an amenable number.

20530535124 is an abundant number, since it is smaller than the sum of its proper divisors (32124918188).

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

20530535124 is a wasteful number, since it uses less digits than its factorization.

20530535124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14139516 (or 14139503 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The spelling of 20530535124 in words is "twenty billion, five hundred thirty million, five hundred thirty-five thousand, one hundred twenty-four".