20424243403000 has 64 divisors (see below), whose sum is σ = 48602775967200. Its totient is φ = 8031227891200.

The previous prime is 20424243402991. The next prime is 20424243403073. The reversal of 20424243403000 is 30434242402.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20424243403000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173027809 + ... + 173145808.

Almost surely, 2^{20424243403000} is an apocalyptic number.

20424243403000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20424243403000 is an abundant number, since it is smaller than the sum of its proper divisors (28178532564200).

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

20424243403000 is a wasteful number, since it uses less digits than its factorization.

20424243403000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346173697 (or 346173683 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 20424243403000 its reverse (30434242402), we get a palindrome (20454677645402).

The spelling of 20424243403000 in words is "twenty trillion, four hundred twenty-four billion, two hundred forty-three million, four hundred three thousand".