20243232520 has 64 divisors (see below), whose sum is σ = 52066396800. Its totient is φ = 6938887680.

The previous prime is 20243232463. The next prime is 20243232547. The reversal of 20243232520 is 2523234202.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2058415 + ... + 2068225.

It is an arithmetic number, because the mean of its divisors is an integer number (813537450).

Almost surely, 2^20243232520 is an apocalyptic number.

20243232520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20243232520 is an abundant number, since it is smaller than the sum of its proper divisors (31823164280).

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

20243232520 is a wasteful number, since it uses less digits than its factorization.

20243232520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17198 (or 17194 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 20243232520 its reverse (2523234202), we get a palindrome (22766466722).

The spelling of 20243232520 in words is "twenty billion, two hundred forty-three million, two hundred thirty-two thousand, five hundred twenty".