323203021220020 has 24 divisors (see below), whose sum is σ = 678899887642368. Its totient is φ = 129248152663200.

The previous prime is 323203021219993. The next prime is 323203021220041. The reversal of 323203021220020 is 20022120302323.

It is a junction number, because it is equal to n+sod(n) for n = 323203021219973 and 323203021220000.

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, 2065908876 + ... + 2066065315.

It is an arithmetic number, because the mean of its divisors is an integer number (28287495318432).

Almost surely, 2^{323203021220020} is an apocalyptic number.

It is an amenable number.

323203021220020 is an abundant number, since it is smaller than the sum of its proper divisors (355696866422348).

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

323203021220020 is a wasteful number, since it uses less digits than its factorization.

323203021220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4131978111 (or 4131978109 counting only the distinct ones).

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

Adding to 323203021220020 its reverse (20022120302323), we get a palindrome (343225141522343).

The spelling of 323203021220020 in words is "three hundred twenty-three trillion, two hundred three billion, twenty-one million, two hundred twenty thousand, twenty".