323140130221020 has 192 divisors, whose sum is σ = 1067459850240000. Its totient is φ = 71474315915520.

The previous prime is 323140130220983. The next prime is 323140130221039. The reversal of 323140130221020 is 20122031041323.

It is a super-2 number, since 2×323140130221020² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 255851031 + ... + 257110929.

It is an arithmetic number, because the mean of its divisors is an integer number (5559686720000).

Almost surely, 2^{323140130221020} is an apocalyptic number.

323140130221020 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 323140130221020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (533729925120000).

323140130221020 is an abundant number, since it is smaller than the sum of its proper divisors (744319720018980).

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

323140130221020 is a wasteful number, since it uses less digits than its factorization.

323140130221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279648 (or 1279646 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 323140130221020 its reverse (20122031041323), we get a palindrome (343262161262343).

The spelling of 323140130221020 in words is "three hundred twenty-three trillion, one hundred forty billion, one hundred thirty million, two hundred twenty-one thousand, twenty".