1323044001000 has 96 divisors (see below), whose sum is σ = 4471888753800. Its totient is φ = 352811731200.

The previous prime is 1323044000989. The next prime is 1323044001023. The reversal of 1323044001000 is 1004403231.

1323044001000 is a `hidden beast` number, since 132 + 30 + 4 + 400 + 100 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 770016780036 + 553027220964 = 877506^2 + 743658^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73493445 + ... + 73511444.

Almost surely, 2^{1323044001000} is an apocalyptic number.

1323044001000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323044001000 is an abundant number, since it is smaller than the sum of its proper divisors (3148844752800).

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

1323044001000 is a wasteful number, since it uses less digits than its factorization.

1323044001000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147004916 (or 147004899 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 1323044001000 its reverse (1004403231), we get a palindrome (1324048404231).

The spelling of 1323044001000 in words is "one trillion, three hundred twenty-three billion, forty-four million, one thousand".