1323321541002 has 64 divisors (see below), whose sum is σ = 3230075520000. Its totient is φ = 399721831344.

The previous prime is 1323321541001. The next prime is 1323321541007. The reversal of 1323321541002 is 2001451233231.

1323321541002 is a `hidden beast` number, since 1 + 3 + 2 + 33 + 215 + 410 + 0 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (1323321541001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28015252 + ... + 28062447.

It is an arithmetic number, because the mean of its divisors is an integer number (50469930000).

Almost surely, 2^{1323321541002} is an apocalyptic number.

1323321541002 is an abundant number, since it is smaller than the sum of its proper divisors (1906753978998).

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

1323321541002 is a wasteful number, since it uses less digits than its factorization.

1323321541002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56077752 (or 56077746 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 1323321541002 its reverse (2001451233231), we get a palindrome (3324772774233).

The spelling of 1323321541002 in words is "one trillion, three hundred twenty-three billion, three hundred twenty-one million, five hundred forty-one thousand, two".