1323221345404 has 96 divisors (see below), whose sum is σ = 2716001164800. Its totient is φ = 552270700800.

The previous prime is 1323221345363. The next prime is 1323221345423. The reversal of 1323221345404 is 4045431223231.

It is a self number, because there is not a number n which added to its sum of digits gives 1323221345404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1017079554 + ... + 1017080854.

It is an arithmetic number, because the mean of its divisors is an integer number (28291678800).

Almost surely, 2^{1323221345404} is an apocalyptic number.

1323221345404 is a gapful number since it is divisible by the number (14) 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 1323221345404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1358000582400).

1323221345404 is an abundant number, since it is smaller than the sum of its proper divisors (1392779819396).

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

1323221345404 is a wasteful number, since it uses less digits than its factorization.

1323221345404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3203 (or 3201 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 1323221345404 its reverse (4045431223231), we get a palindrome (5368652568635).

The spelling of 1323221345404 in words is "one trillion, three hundred twenty-three billion, two hundred twenty-one million, three hundred forty-five thousand, four hundred four".