20203334400424 has 128 divisors (see below), whose sum is σ = 45690224025600. Its totient is φ = 8181491028480.

The previous prime is 20203334400407. The next prime is 20203334400437. The reversal of 20203334400424 is 42400443330202.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1289210109 + ... + 1289225779.

It is an arithmetic number, because the mean of its divisors is an integer number (356954875200).

Almost surely, 2^{20203334400424} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20203334400424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22845112012800).

20203334400424 is an abundant number, since it is smaller than the sum of its proper divisors (25486889625176).

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

20203334400424 is a wasteful number, since it uses less digits than its factorization.

20203334400424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18783 (or 18779 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 31.

Adding to 20203334400424 its reverse (42400443330202), we get a palindrome (62603777730626).

The spelling of 20203334400424 in words is "twenty trillion, two hundred three billion, three hundred thirty-four million, four hundred thousand, four hundred twenty-four".