323313131232 has 576 divisors, whose sum is σ = 1213340869440. Its totient is φ = 82959593472.

The previous prime is 323313131209. The next prime is 323313131299. The reversal of 323313131232 is 232131313323.

323313131232 is a `hidden beast` number, since 3 + 2 + 3 + 313 + 1 + 312 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 323313131196 and 323313131205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 20355678 + ... + 20371554.

It is an arithmetic number, because the mean of its divisors is an integer number (2106494565).

Almost surely, 2^323313131232 is an apocalyptic number.

323313131232 is a gapful number since it is divisible by the number (32) 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 323313131232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (606670434720).

323313131232 is an abundant number, since it is smaller than the sum of its proper divisors (890027738208).

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

323313131232 is a wasteful number, since it uses less digits than its factorization.

323313131232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15960 (or 15939 counting only the distinct ones).

The product of its digits is 5832, while the sum is 27.

Adding to 323313131232 its reverse (232131313323), we get a palindrome (555444444555).

The spelling of 323313131232 in words is "three hundred twenty-three billion, three hundred thirteen million, one hundred thirty-one thousand, two hundred thirty-two".