2321112223320 has 128 divisors (see below), whose sum is σ = 7600176000000. Its totient is φ = 562411745280.

The previous prime is 2321112223289. The next prime is 2321112223327. The reversal of 2321112223320 is 233222111232.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321112223327) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2198856 + ... + 3078504.

It is an arithmetic number, because the mean of its divisors is an integer number (59376375000).

Almost surely, 2^{2321112223320} is an apocalyptic number.

2321112223320 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 2321112223320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3800088000000).

2321112223320 is an abundant number, since it is smaller than the sum of its proper divisors (5279063776680).

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

2321112223320 is a wasteful number, since it uses less digits than its factorization.

2321112223320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881673 (or 881669 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 2321112223320 its reverse (233222111232), we get a palindrome (2554334334552).

The spelling of 2321112223320 in words is "two trillion, three hundred twenty-one billion, one hundred twelve million, two hundred twenty-three thousand, three hundred twenty".