1223321231304 has 64 divisors (see below), whose sum is σ = 3408834326400. Its totient is φ = 406487368512.

The previous prime is 1223321231273. The next prime is 1223321231393. The reversal of 1223321231304 is 4031321233221.

1223321231304 is a `hidden beast` number, since 1 + 2 + 2 + 3 + 321 + 2 + 31 + 304 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 8864532 + ... + 9001475.

It is an arithmetic number, because the mean of its divisors is an integer number (53263036350).

Almost surely, 2^{1223321231304} is an apocalyptic number.

It is an amenable number.

1223321231304 is an abundant number, since it is smaller than the sum of its proper divisors (2185513095096).

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

1223321231304 is a wasteful number, since it uses less digits than its factorization.

1223321231304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17866339 (or 17866329 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 1223321231304 its reverse (4031321233221), we get a palindrome (5254642464525).

The spelling of 1223321231304 in words is "one trillion, two hundred twenty-three billion, three hundred twenty-one million, two hundred thirty-one thousand, three hundred four".