323020402000 has 40 divisors (see below), whose sum is σ = 781063336872. Its totient is φ = 129208160000.

The previous prime is 323020401967. The next prime is 323020402009. The reversal of 323020402000 is 204020323.

It can be written as a sum of positive squares in 4 ways, for example, as 32115507264 + 290904894736 = 179208^2 + 539356^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323020402009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80753101 + ... + 80757100.

Almost surely, 2^323020402000 is an apocalyptic number.

It is an amenable number.

323020402000 is an abundant number, since it is smaller than the sum of its proper divisors (458042934872).

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

323020402000 is a wasteful number, since it uses less digits than its factorization.

323020402000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161510224 (or 161510208 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

Adding to 323020402000 its reverse (204020323), we get a palindrome (323224422323).

The spelling of 323020402000 in words is "three hundred twenty-three billion, twenty million, four hundred two thousand".