20305530232 has 16 divisors (see below), whose sum is σ = 41001551640. Its totient is φ = 9371783136.

The previous prime is 20305530229. The next prime is 20305530239. The reversal of 20305530232 is 23203550302.

It is a junction number, because it is equal to n+sod(n) for n = 20305530197 and 20305530206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20305530239) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 97622638 + ... + 97622845.

Almost surely, 2^20305530232 is an apocalyptic number.

It is an amenable number.

20305530232 is an abundant number, since it is smaller than the sum of its proper divisors (20696021408).

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

20305530232 is a wasteful number, since it uses less digits than its factorization.

20305530232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195245502 (or 195245498 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 25.

The spelling of 20305530232 in words is "twenty billion, three hundred five million, five hundred thirty thousand, two hundred thirty-two".