20304112 has 10 divisors (see below), whose sum is σ = 39339248. Its totient is φ = 10152048.

The previous prime is 20304091. The next prime is 20304121. The reversal of 20304112 is 21140302.

It is a junction number, because it is equal to n+sod(n) for n = 20304092 and 20304101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634488 + ... + 634519.

Almost surely, 2^20304112 is an apocalyptic number.

It is an amenable number.

20304112 is a deficient number, since it is larger than the sum of its proper divisors (19035136).

20304112 is a wasteful number, since it uses less digits than its factorization.

20304112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269015 (or 1269009 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 20304112 is about 4506.0084331923. The cubic root of 20304112 is about 272.8106582466.

Adding to 20304112 its reverse (21140302), we get a palindrome (41444414).

The spelling of 20304112 in words is "twenty million, three hundred four thousand, one hundred twelve".