323013420020 has 72 divisors (see below), whose sum is σ = 709780614144. Its totient is φ = 123469651008.

The previous prime is 323013420013. The next prime is 323013420029. The reversal of 323013420020 is 20024310323.

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 = 323013419974 and 323013420001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323013420029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11486417 + ... + 11514503.

Almost surely, 2^323013420020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 323013420020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354890307072).

323013420020 is an abundant number, since it is smaller than the sum of its proper divisors (386767194124).

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

323013420020 is a wasteful number, since it uses less digits than its factorization.

323013420020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29229 (or 29204 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 323013420020 its reverse (20024310323), we get a palindrome (343037730343).

The spelling of 323013420020 in words is "three hundred twenty-three billion, thirteen million, four hundred twenty thousand, twenty".