323120010020 has 24 divisors (see below), whose sum is σ = 685270362168. Its totient is φ = 127968320000.

The previous prime is 323120009983. The next prime is 323120010029. The reversal of 323120010020 is 20010021323.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 38100697636 + 285019312384 = 195194^2 + 533872^2 .

It is a junction number, because it is equal to n+sod(n) for n = 323120009977 and 323120010004.

It is not an unprimeable number, because it can be changed into a prime (323120010029) 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, 79978181 + ... + 79982220.

It is an arithmetic number, because the mean of its divisors is an integer number (28552931757).

Almost surely, 2^323120010020 is an apocalyptic number.

It is an amenable number.

323120010020 is an abundant number, since it is smaller than the sum of its proper divisors (362150352148).

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

323120010020 is a wasteful number, since it uses less digits than its factorization.

323120010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159960511 (or 159960509 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 323120010020 its reverse (20010021323), we get a palindrome (343130031343).

The spelling of 323120010020 in words is "three hundred twenty-three billion, one hundred twenty million, ten thousand, twenty".