20321043024 has 40 divisors (see below), whose sum is σ = 55584031680. Its totient is φ = 6375228928.

The previous prime is 20321043013. The next prime is 20321043049. The reversal of 20321043024 is 42034012302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12450804 + ... + 12452435.

It is an arithmetic number, because the mean of its divisors is an integer number (1389600792).

Almost surely, 2^20321043024 is an apocalyptic number.

20321043024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20321043024 is an abundant number, since it is smaller than the sum of its proper divisors (35262988656).

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

20321043024 is a wasteful number, since it uses less digits than its factorization.

20321043024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24903267 (or 24903261 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20321043024 its reverse (42034012302), we get a palindrome (62355055326).

The spelling of 20321043024 in words is "twenty billion, three hundred twenty-one million, forty-three thousand, twenty-four".