323215330140 has 144 divisors (see below), whose sum is σ = 990274626432. Its totient is φ = 85325536128.

The previous prime is 323215330133. The next prime is 323215330169. The reversal of 323215330140 is 41033512323.

323215330140 is a `hidden beast` number, since 3 + 2 + 321 + 5 + 330 + 1 + 4 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32101387 + ... + 32111453.

It is an arithmetic number, because the mean of its divisors is an integer number (6876907128).

Almost surely, 2^323215330140 is an apocalyptic number.

323215330140 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 323215330140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (495137313216).

323215330140 is an abundant number, since it is smaller than the sum of its proper divisors (667059296292).

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

323215330140 is a wasteful number, since it uses less digits than its factorization.

323215330140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11856 (or 11851 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

Adding to 323215330140 its reverse (41033512323), we get a palindrome (364248842463).

The spelling of 323215330140 in words is "three hundred twenty-three billion, two hundred fifteen million, three hundred thirty thousand, one hundred forty".