1223012000320 has 56 divisors (see below), whose sum is σ = 3177051637248. Its totient is φ = 444731635200.

The previous prime is 1223012000317. The next prime is 1223012000347. The reversal of 1223012000320 is 230002103221.

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

It is a junction number, because it is equal to n+sod(n) for n = 1223012000294 and 1223012000303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173719776 + ... + 173726815.

Almost surely, 2^{1223012000320} is an apocalyptic number.

1223012000320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223012000320 is an abundant number, since it is smaller than the sum of its proper divisors (1954039636928).

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

1223012000320 is a wasteful number, since it uses less digits than its factorization.

1223012000320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347446619 (or 347446609 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 1223012000320 its reverse (230002103221), we get a palindrome (1453014103541).

The spelling of 1223012000320 in words is "one trillion, two hundred twenty-three billion, twelve million, three hundred twenty", and thus it is an aban number.