223320321312 has 48 divisors (see below), whose sum is σ = 639508195872. Its totient is φ = 67672824320.

The previous prime is 223320321293. The next prime is 223320321331. The reversal of 223320321312 is 213123023322.

It is an interprime number because it is at equal distance from previous prime (223320321293) and next prime (223320321331).

It is a tau number, because it is divible by the number of its divisors (48).

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

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 105737733 + ... + 105739844.

It is an arithmetic number, because the mean of its divisors is an integer number (13323087414).

Almost surely, 2^223320321312 is an apocalyptic number.

223320321312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

223320321312 is an abundant number, since it is smaller than the sum of its proper divisors (416187874560).

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

223320321312 is a wasteful number, since it uses less digits than its factorization.

223320321312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211477601 (or 211477593 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 223320321312 its reverse (213123023322), we get a palindrome (436443344634).

The spelling of 223320321312 in words is "two hundred twenty-three billion, three hundred twenty million, three hundred twenty-one thousand, three hundred twelve".