20304121100 has 36 divisors (see below), whose sum is σ = 44288274744. Its totient is φ = 8079559680.

The previous prime is 20304121091. The next prime is 20304121153. The reversal of 20304121100 is 112140302.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 506714 + ... + 545313.

It is an arithmetic number, because the mean of its divisors is an integer number (1230229854).

Almost surely, 2^20304121100 is an apocalyptic number.

20304121100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20304121100 is an abundant number, since it is smaller than the sum of its proper divisors (23984153644).

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

20304121100 is a wasteful number, since it uses less digits than its factorization.

20304121100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052234 (or 1052227 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20304121100 its reverse (112140302), we get a palindrome (20416261402).

The spelling of 20304121100 in words is "twenty billion, three hundred four million, one hundred twenty-one thousand, one hundred".