20331303323232 has 72 divisors (see below), whose sum is σ = 58662531213048. Its totient is φ = 6161001003520.

The previous prime is 20331303323189. The next prime is 20331303323257. The reversal of 20331303323232 is 23232330313302.

It is a self number, because there is not a number n which added to its sum of digits gives 20331303323232.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 875130573 + ... + 875153804.

It is an arithmetic number, because the mean of its divisors is an integer number (814757377959).

Almost surely, 2^{20331303323232} is an apocalyptic number.

20331303323232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20331303323232 is an abundant number, since it is smaller than the sum of its proper divisors (38331227889816).

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

20331303323232 is a wasteful number, since it uses less digits than its factorization.

20331303323232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750284412 (or 1750284393 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 30.

Adding to 20331303323232 its reverse (23232330313302), we get a palindrome (43563633636534).

The spelling of 20331303323232 in words is "twenty trillion, three hundred thirty-one billion, three hundred three million, three hundred twenty-three thousand, two hundred thirty-two".