223323400520 has 64 divisors (see below), whose sum is σ = 548243035200. Its totient is φ = 81195828480.

The previous prime is 223323400519. The next prime is 223323400537. The reversal of 223323400520 is 25004323322.

It is a self number, because there is not a number n which added to its sum of digits gives 223323400520.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3055766 + ... + 3127994.

It is an arithmetic number, because the mean of its divisors is an integer number (8566297425).

Almost surely, 2^223323400520 is an apocalyptic number.

223323400520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223323400520 is an abundant number, since it is smaller than the sum of its proper divisors (324919634680).

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

223323400520 is a wasteful number, since it uses less digits than its factorization.

223323400520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79278 (or 79274 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 26.

Adding to 223323400520 its reverse (25004323322), we get a palindrome (248327723842).

The spelling of 223323400520 in words is "two hundred twenty-three billion, three hundred twenty-three million, four hundred thousand, five hundred twenty".