20303417424 has 40 divisors (see below), whose sum is σ = 55535820480. Its totient is φ = 6369699328.

The previous prime is 20303417413. The next prime is 20303417443. The reversal of 20303417424 is 42471430302.

It is a junction number, because it is equal to n+sod(n) for n = 20303417391 and 20303417400.

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, 12440004 + ... + 12441635.

It is an arithmetic number, because the mean of its divisors is an integer number (1388395512).

Almost surely, 2^20303417424 is an apocalyptic number.

20303417424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20303417424 is an abundant number, since it is smaller than the sum of its proper divisors (35232403056).

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

20303417424 is a wasteful number, since it uses less digits than its factorization.

20303417424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24881667 (or 24881661 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 30.

Adding to 20303417424 its reverse (42471430302), we get a palindrome (62774847726).

The spelling of 20303417424 in words is "twenty billion, three hundred three million, four hundred seventeen thousand, four hundred twenty-four".