20300312424 has 128 divisors (see below), whose sum is σ = 61138713600. Its totient is φ = 5487160320.

The previous prime is 20300312423. The next prime is 20300312437. The reversal of 20300312424 is 42421300302.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 20300312424.

It is not an unprimeable number, because it can be changed into a prime (20300312423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2508064 + ... + 2516144.

It is an arithmetic number, because the mean of its divisors is an integer number (477646200).

Almost surely, 2^20300312424 is an apocalyptic number.

20300312424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20300312424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30569356800).

20300312424 is an abundant number, since it is smaller than the sum of its proper divisors (40838401176).

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

20300312424 is a wasteful number, since it uses less digits than its factorization.

20300312424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8903 (or 8899 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20300312424 its reverse (42421300302), we get a palindrome (62721612726).

The spelling of 20300312424 in words is "twenty billion, three hundred million, three hundred twelve thousand, four hundred twenty-four".