323402123220 has 576 divisors, whose sum is σ = 1072082995200. Its totient is φ = 72572544000.

The previous prime is 323402123203. The next prime is 323402123227. The reversal of 323402123220 is 22321204323.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323402123227) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1936539577 + ... + 1936539743.

It is an arithmetic number, because the mean of its divisors is an integer number (1861255200).

Almost surely, 2^323402123220 is an apocalyptic number.

323402123220 is a gapful number since it is divisible by the number (30) 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 323402123220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (536041497600).

323402123220 is an abundant number, since it is smaller than the sum of its proper divisors (748680871980).

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

323402123220 is a wasteful number, since it uses less digits than its factorization.

323402123220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460 (or 447 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 323402123220 its reverse (22321204323), we get a palindrome (345723327543).

The spelling of 323402123220 in words is "three hundred twenty-three billion, four hundred two million, one hundred twenty-three thousand, two hundred twenty".