1305323121204 has 72 divisors (see below), whose sum is σ = 3515092701120. Its totient is φ = 407000754432.

The previous prime is 1305323121173. The next prime is 1305323121247. The reversal of 1305323121204 is 4021213235031.

1305323121204 is a `hidden beast` number, since 1 + 3 + 0 + 532 + 3 + 1 + 2 + 120 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6442824 + ... + 6642335.

It is an arithmetic number, because the mean of its divisors is an integer number (48820731960).

Almost surely, 2^{1305323121204} is an apocalyptic number.

It is an amenable number.

1305323121204 is an abundant number, since it is smaller than the sum of its proper divisors (2209769579916).

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

1305323121204 is a wasteful number, since it uses less digits than its factorization.

1305323121204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13085349 (or 13085344 counting only the distinct ones).

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

Adding to 1305323121204 its reverse (4021213235031), we get a palindrome (5326536356235).

The spelling of 1305323121204 in words is "one trillion, three hundred five billion, three hundred twenty-three million, one hundred twenty-one thousand, two hundred four".