20300501320 has 128 divisors (see below), whose sum is σ = 50993141760. Its totient is φ = 7210120960.

The previous prime is 20300501297. The next prime is 20300501327. The reversal of 20300501320 is 2310500302.

It is a super-2 number, since 2×20300501320² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20300501294 and 20300501303.

It is not an unprimeable number, because it can be changed into a prime (20300501327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17101767 + ... + 17102953.

It is an arithmetic number, because the mean of its divisors is an integer number (398383920).

Almost surely, 2^20300501320 is an apocalyptic number.

20300501320 is a gapful number since it is divisible by the number (20) 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 20300501320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25496570880).

20300501320 is an abundant number, since it is smaller than the sum of its proper divisors (30692640440).

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

20300501320 is a wasteful number, since it uses less digits than its factorization.

20300501320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2083 (or 2079 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The spelling of 20300501320 in words is "twenty billion, three hundred million, five hundred one thousand, three hundred twenty".