1311323130204 has 48 divisors (see below), whose sum is σ = 3125212608000. Its totient is φ = 427758604416.

The previous prime is 1311323130203. The next prime is 1311323130263. The reversal of 1311323130204 is 4020313231131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311323130203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4975167 + ... + 5232105.

It is an arithmetic number, because the mean of its divisors is an integer number (65108596000).

Almost surely, 2^{1311323130204} is an apocalyptic number.

It is an amenable number.

1311323130204 is an abundant number, since it is smaller than the sum of its proper divisors (1813889477796).

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

1311323130204 is a wasteful number, since it uses less digits than its factorization.

1311323130204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266042 (or 266040 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1311323130204 its reverse (4020313231131), we get a palindrome (5331636361335).

The spelling of 1311323130204 in words is "one trillion, three hundred eleven billion, three hundred twenty-three million, one hundred thirty thousand, two hundred four".