20331223000000 has 392 divisors, whose sum is σ = 55949133841920. Its totient is φ = 7267632000000.

The previous prime is 20331222999953. The next prime is 20331223000001. The reversal of 20331223000000 is 32213302.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331223000001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 648984337 + ... + 649015663.

Almost surely, 2^{20331223000000} is an apocalyptic number.

20331223000000 is a gapful number since it is divisible by the number (20) 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 20331223000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27974566920960).

20331223000000 is an abundant number, since it is smaller than the sum of its proper divisors (35617910841920).

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

20331223000000 is an frugal number, since it uses more digits than its factorization.

20331223000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31439 (or 31404 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 20331223000000 its reverse (32213302), we get a palindrome (20331255213302).

The spelling of 20331223000000 in words is "twenty trillion, three hundred thirty-one billion, two hundred twenty-three million", and thus it is an aban number.