20212343320 has 64 divisors (see below), whose sum is σ = 49192103520. Its totient is φ = 7430098944.

The previous prime is 20212343293. The next prime is 20212343323. The reversal of 20212343320 is 2334321202.

It is a super-3 number, since 3×20212343320³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20212343291 and 20212343300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212343323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32424 + ... + 203656.

Almost surely, 2^20212343320 is an apocalyptic number.

20212343320 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 20212343320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24596051760).

20212343320 is an abundant number, since it is smaller than the sum of its proper divisors (28979760200).

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

20212343320 is a wasteful number, since it uses less digits than its factorization.

20212343320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171484 (or 171480 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20212343320 its reverse (2334321202), we get a palindrome (22546664522).

The spelling of 20212343320 in words is "twenty billion, two hundred twelve million, three hundred forty-three thousand, three hundred twenty".