1323023221008 has 60 divisors (see below), whose sum is σ = 3713116658940. Its totient is φ = 439758409728.

The previous prime is 1323023220943. The next prime is 1323023221019. The reversal of 1323023221008 is 8001223203231.

It is a happy number.

1323023221008 is a `hidden beast` number, since 1 + 3 + 230 + 2 + 322 + 100 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 693076230144 + 629946990864 = 832512^2 + 793692^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12962853 + ... + 13064516.

It is an arithmetic number, because the mean of its divisors is an integer number (61885277649).

Almost surely, 2^{1323023221008} is an apocalyptic number.

1323023221008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1323023221008 is an abundant number, since it is smaller than the sum of its proper divisors (2390093437932).

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

1323023221008 is a wasteful number, since it uses less digits than its factorization.

1323023221008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26027736 (or 26027727 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 1323023221008 its reverse (8001223203231), we get a palindrome (9324246424239).

The spelling of 1323023221008 in words is "one trillion, three hundred twenty-three billion, twenty-three million, two hundred twenty-one thousand, eight".