20300523320 has 192 divisors, whose sum is σ = 57685824000. Its totient is φ = 6293548800.

The previous prime is 20300523311. The next prime is 20300523367. The reversal of 20300523320 is 2332500302.

It is a super-2 number, since 2×20300523320² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20300523292 and 20300523301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6740615 + ... + 6743625.

It is an arithmetic number, because the mean of its divisors is an integer number (300447000).

Almost surely, 2^20300523320 is an apocalyptic number.

20300523320 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 20300523320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28842912000).

20300523320 is an abundant number, since it is smaller than the sum of its proper divisors (37385300680).

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

20300523320 is a wasteful number, since it uses less digits than its factorization.

20300523320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3250 (or 3235 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 20.

The spelling of 20300523320 in words is "twenty billion, three hundred million, five hundred twenty-three thousand, three hundred twenty".