20043351320 has 64 divisors (see below), whose sum is σ = 47430800640. Its totient is φ = 7612300800.

The previous prime is 20043351259. The next prime is 20043351343. The reversal of 20043351320 is 2315334002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86771 + ... + 218210.

It is an arithmetic number, because the mean of its divisors is an integer number (741106260).

Almost surely, 2^20043351320 is an apocalyptic number.

20043351320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20043351320 is an abundant number, since it is smaller than the sum of its proper divisors (27387449320).

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

20043351320 is a wasteful number, since it uses less digits than its factorization.

20043351320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305076 (or 305072 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 20043351320 its reverse (2315334002), we get a palindrome (22358685322).

The spelling of 20043351320 in words is "twenty billion, forty-three million, three hundred fifty-one thousand, three hundred twenty".