20331323132232 has 256 divisors, whose sum is σ = 61519001817600. Its totient is φ = 5477030092800.

The previous prime is 20331323132201. The next prime is 20331323132291. The reversal of 20331323132232 is 23223132313302.

It is a self number, because there is not a number n which added to its sum of digits gives 20331323132232.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35638258 + ... + 36204254.

It is an arithmetic number, because the mean of its divisors is an integer number (240308600850).

Almost surely, 2^{20331323132232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20331323132232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30759500908800).

20331323132232 is an abundant number, since it is smaller than the sum of its proper divisors (41187678685368).

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

20331323132232 is a wasteful number, since it uses less digits than its factorization.

20331323132232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566216 (or 566212 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 30.

Adding to 20331323132232 its reverse (23223132313302), we get a palindrome (43554455445534).

The spelling of 20331323132232 in words is "twenty trillion, three hundred thirty-one billion, three hundred twenty-three million, one hundred thirty-two thousand, two hundred thirty-two".