1311242321604 has 48 divisors (see below), whose sum is σ = 3112267052160. Its totient is φ = 429563696640.

The previous prime is 1311242321591. The next prime is 1311242321651. The reversal of 1311242321604 is 4061232421131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162892 + ... + 1627580.

It is an arithmetic number, because the mean of its divisors is an integer number (64838896920).

Almost surely, 2^{1311242321604} is an apocalyptic number.

It is an amenable number.

1311242321604 is an abundant number, since it is smaller than the sum of its proper divisors (1801024730556).

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

1311242321604 is a wasteful number, since it uses less digits than its factorization.

1311242321604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465980 (or 1465978 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 1311242321604 its reverse (4061232421131), we get a palindrome (5372474742735).

The spelling of 1311242321604 in words is "one trillion, three hundred eleven billion, two hundred forty-two million, three hundred twenty-one thousand, six hundred four".