20304421012 has 12 divisors (see below), whose sum is σ = 35534573536. Its totient is φ = 10151685720.

The previous prime is 20304421009. The next prime is 20304421051. The reversal of 20304421012 is 21012440302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36558 + ... + 204805.

Almost surely, 2^20304421012 is an apocalyptic number.

It is an amenable number.

20304421012 is a deficient number, since it is larger than the sum of its proper divisors (15230152524).

20304421012 is a wasteful number, since it uses less digits than its factorization.

20304421012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262398 (or 262396 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20304421012 its reverse (21012440302), we get a palindrome (41316861314).

The spelling of 20304421012 in words is "twenty billion, three hundred four million, four hundred twenty-one thousand, twelve".